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Republic of the Philippines

National Capital Region�Department of Education�SCHOOLS DIVISION OFFICE – MARIKINA CITY

SCIENCE 7

FIRST QUARTER

Module 1: Scientific Investigation

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The author does not claim ownership of the documents, images, audio, music, video and other materials used in this lesson. They remain the property of the original creators who are mentioned in the acknowledgment section of this lesson. The said materials are used for educational purposes only.

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Thank you very much!

DISCLAIMER

MODULE 1: SCIENTIFIC INVESTIGATION

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Overview

Objectives

Lessons

Activities

Evaluation

References

Pre-Assessment

Experiential

Learning

MODULE 1: SCIENTIFIC INVESTIGATION

SCIENCE 7: FIRST QUARTER

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Directions: Choose and click the letter of the best answer.

        • Which of the following is a quantitative observation?

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The sugar is sweet.

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The coffee granules dissolve well in hot water.

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The solution is blue.

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Alcohol has 70 ml ethanol.

What I Know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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        • The statement “I think crushed salt dissolves faster than rock salt” is a/an:

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conclusion observation

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hypothesis problem

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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            • In doing scientific investigations, what is the next step after identifying the problem?

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Formulate a hypothesis

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Gather relevant data

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Prepare a conclusion

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Test the hypothesis

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

        • You saw that the plant in front of your window is turning yellow. What can you infer about the situation?

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The plant needs water and sunlight

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The plant is sad and lonely

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The plant is really yellow

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The plant will soon die

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

For numbers 5 and 6:

You tried to investigate how fast powdered juice dissolves in cold and in hot water.

I. The temperature of water.

II. The amount of powdered juice that completely dissolves in hot water.

III. The amount of powdered juice that completely dissolves in cold water.

IV. The length of time it takes for the powdered juice to completely dissolves.

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            • What is the dependent variable?

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I only I, II and III II and III II, III and IV

            • What is the independent variable in the investigation?

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I only I, II and III II and III I, III and IV

Let’s test what you know

A

B

C

D

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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        • During a strong rain, you noticed that the light inside your house is fluctuating. What is your prediction based from this observation?

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Blackout may happen

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The electricity will explode

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The storm will become stronger

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There is an incoming earthquake

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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            • Which sequence would reflect the steps a scientist would follow when solving a problem?

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Conclusion, Hypothesis, Observation

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Experimentation, Conclusion, Observation

Hypothesis, Experimentation, Conclusion

Observation, Experiment, Hypothesis

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

        • An investigation was done by applying different amounts of fertilizer to the five different areas of the field that are planted with rice. Which is the independent variable?

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amount of fertilizer

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area of the rice field

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height of plants

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number of plants

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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            • The orderly and systematic approach in solving problems is called ___________.

Conclusion

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Experiment

Observation

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Scientific Method

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Let’s test what you know

A

B

C

D

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Directions: Read the paragraph then click the arrow for the questions.

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For numbers 11-15:

You always join your father when he is watering the plants in your garden. You noticed that a certain part of the garden is covered in shade and the other part of the garden is exposed to sunlight. You also noticed that the plants in the shaded area have yellow leaves and shorter in height.

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Let’s test what you know

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Directions: Choose and click the letter of the best answer.

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        • What is the problem in the given situation?

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Can earthworms make the plants healthy?

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Can the amount of sunlight affect the growth of plants?

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Can water affect the growth of plants?

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Did my father use fertilizer to make the plants healthy?

Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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            • What can be the best hypothesis that you can formulate from the situation?

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Sunlight can make the plants grow healthy.

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Sunlight can burn the leaves that can turn it to yellow.

Sunlight can cause the dehydration of the plant.

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Water can make the plants grow healthy.

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

        • If you are to design an experiment regarding this, what will be the dependent variable?

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Amount of water

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Condition of the plant

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The amount of sunlight

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The number of earthworms

Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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            • What factors will you keep constant or unchanged?

The amount of water and fertilizer.

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The amount of sunlight.

The amount of water, air and fertilizer.

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The amount of sunlight, water, air and fertilizer.

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Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

        • What is the independent variable?

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The amount of sunlight.

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The amount of water.

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The amount of sugar.

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The amount of fertilizer.

Let’s test what you know

A

B

C

D

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Excellent! Answer the next question please.

Question No. 2

Question No. 3

Question No. 4

Question Nos.

5 & 6

Question No. 1

Question No. 7

Question No. 8

Question No. 9

Question No. 10

Question No. 12

Question No. 13

Question No. 14

Question No. 15

Question No. 11

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Nice try! Answer the next question please.

Question No. 2

Question No. 3

Question No. 4

Question Nos.

5 & 6

Question No. 1

Question No. 7

Question No. 8

Question No. 9

Question No. 10

Question No. 12

Question No. 13

Question No. 14

Question No. 15

Question No. 11

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Excellent! Click the arrow please.

Question No. 2

Question No. 3

Question No. 4

Question Nos.

5 & 6

Question No. 1

Question No. 7

Question No. 8

Question No. 9

Question No. 10

Question No. 12

Question No. 13

Question No. 14

Question No. 15

Question No. 11

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Nice try! Click the arrow please.

Question No. 2

Question No. 3

Question No. 4

Question Nos.

5 & 6

Question No. 1

Question No. 7

Question No. 8

Question No. 9

Question No. 10

Question No. 12

Question No. 13

Question No. 14

Question No. 15

Question No. 11

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SCIENCE 7: FIRST QUARTER

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Overview

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Activities

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References

What I Need to Know

This module was created to deliver science concepts in an integrative way. It is to help you analyze or solve problems critically, think innovatively, and make sound decisions. It is important for you to understand the basic scientific approach in dealing with the daily life situations and find answers to different events and phenomena that may occur naturally or due to human activities.

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The module is divided into two lessons, namely:

    • Lesson 1 – Scientific Method: Components of Scientific Investigation
    • Lesson 2 – Qualitative and Quantitative Observations

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After going through this module, you are expected to describe the components of a Scientific Investigation (S7MT-Ia-b-1).

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Specifically, you are expected to:

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    • recognize that the design of an investigation should show fair testing;
    • identify the components of an investigation;
    • describe constant, independent and dependent variables;
    • classify observations as to qualitative or quantitative; and
    • differentiate observation from inference.

Overview

Objectives

Lesson

Activities

Evaluation

References

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LESSON 1:

Scientific Method: Components of Scientific Investigation

LESSON 2:

Qualitative and Quantitative

Observations

Click the Lesson Number to access the material

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LESSON 1: Scientific Method: Components of Scientific Investigation

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Science and technology affect human beings and their way of life. Scientists and inventors make discoveries and innovations to make life comfortable and make our works easier and faster. They perform experiments to work out solutions to problems. They follow steps in order to achieve a sound solution to a problem. This progression of steps is known as the scientific method.

Overview

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What’s in?: Arrange the following steps of the scientific method. Use nos. 1-5. 1-5. Write your answer on a separate sheet of paper.

_____ Formulate a conclusion.

_____ Interpret the results of the experiment.

_____ Ask a question or problem.

_____ Perform an experiment.

_____ Make some hypotheses.

Overview

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Activities

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References

Check Answers

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References

What’s in?

Arrange the following steps of the scientific method. Use nos. 1-5. Type your answer in the textbox.

5 Formulate a conclusion.

4 Interpret the results of the experiment.

1 Ask a question or problem.

3 Perform an experiment.

2 Make some hypotheses.

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What’s New?

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Do you remember ECQ, MECQ, and GCQ? What do you know about them? Did you see any problems during the quarantine period? Name some of these problems. Do this on a separate sheet of paper.

Overview

Objectives

Lesson

Activities

Evaluation

References

Check Answers

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What’s New?

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Do you remember ECQ, MECQ, and GCQ? What do you know about them? Did you see any problems during the quarantine period? Name some of these problems. Type your answer in the text editor.

Overview

Objectives

Lesson

Activities

Evaluation

References

Enhanced Community Quarantine(ECQ)

Modified Enhanced Community Quarantine (MECQ)

General Community Quarantine (GCQ)

Some problems during the quarantine period are spread of corona virus and the disease, no public transportation, no work, no school, people disobeying health protocols and others.

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What is it?

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Scientific method is a logical process of finding solution to a problem. It involves a series of steps that are used to solve problems: identifying the problem; gathering data; formulating hypothesis; testing the hypothesis; formulating conclusion; and verifying the conclusion. The factors that are being tested in an experiment are called variables.

Overview

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Activities

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References

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What is it?

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Variables are components in an experiment that are either maintained or changed to check the validity of the results. Independent variable is the condition that is varied or manipulated. Dependent variable is the condition that results from manipulation or affected by the independent variable. The condition that is controlled or kept the same in the experiment is called the constant variable.

Overview

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Lesson

Activities

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References

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What is it?

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Fair testing is applied when conducting experiments. It is done by changing only one factor at a time while keeping all other conditions the same.

Click the ACTIVITIES Tab and follow instructions

Overview

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Lesson

Activities

Evaluation

References

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Overview

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Lesson

Activities

Evaluation

References

LESSON 1:

Activities

LESSON 2:

Activities

Click the Lesson Number to access its activities

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ACTIVITY 1

ACTIVITY 2

Overview

Objectives

Lesson

Activities

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References

ACTIVITY 3

LESSON 1: Scientific Method: Components of

Scientific Investigation

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What’s More:

Activity 1: Fair or Not Fair?

Procedure:

1. Read the experiment below.

Janna’s Experiment

Janna noticed that there are crushed eggshells in the pots of orchids in her neighbor’s garden. She wondered why eggshells are placed in the pots. She observed the orchid leaves in the garden and she saw that the leaves are dark green in color. She wants to find out if the eggshells affect the growth of the orchids in the garden.

Overview

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Lesson

Activities

Evaluation

References

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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What’s More:

Activity 1: Fair or Not Fair?

Procedure:

1. Read the experiment below.

Janna’s Experiment

Janna guessed that orchids with eggshells will have greener leaves than those without eggshells because as the eggshells decompose, minerals in the shells and in the membrane will provide nutrients to the growing orchids. Greener leaves mean the orchids are healthy.

Overview

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Lesson

Activities

Evaluation

References

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

1. Read the experiment below.

Janna’s Experiment

Janna asked her father to help her prepare a greenhouse to conduct an experiment. They purchased 10 pots of orchids of the same variety, size and age. She arranged the 5 pots in the left corner of the greenhouse and another 5 pots in the right corner. Then, she made an initial record of the appearance of the orchids in her notebook. Together with her father, they collected some eggshells, crushed them, and distributed them equally among the 5 pots in the right corner. All the orchids were taken care of in the same way for 45 days.

Overview

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Lesson

Activities

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References

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

1. Read the experiment below.

Janna’s Experiment

In the first and second week of observations, there were no manifestations of changes in the orchids but the succeeding observations started to show changes in the color of the orchid’s leaves. After 45 days, Janna noticed that the leaves of the orchids with eggshells were darker green in color than those without eggshells.

Janna discovered that eggshells can be used as fertilizers for some varieties of orchids as shown by the greener color of their leaves.

Overview

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Lesson

Activities

Evaluation

References

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

2. Answer the given questions. Write your answer on a separate sheet of paper.

1. What are the initial observations in the situation?

__________________________________________________

__________________________________________________

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2. Can you identify the real problem in the experiment?

__________________________________________________ __________________________________________________

Overview

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Lesson

Activities

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References

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

2. Answer the given questions. Write your answer on a separate sheet of paper.

3. What were the tentative explanations to the problem?

__________________________________________________

__________________________________________________

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4. How did Janna find out if the explanations to the problem are correct?

__________________________________________________

__________________________________________________

Overview

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Lesson

Activities

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References

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

2. Answer the given questions. Write your answer on a separate sheet of paper.

5. Was there a fair testing in Janna’s experiment? Explain.

__________________________________________________

__________________________________________________

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6. How did Janna solve her problem?

__________________________________________________

__________________________________________________

Overview

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Activities

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References

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

2. Answer the given questions. Write your answer on a separate sheet of paper.

7. Enumerate the variables in Janna’s experiment.

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__________________________________________________

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8. How do you differentiate the types of variables in an experiment?

__________________________________________________

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Overview

Objectives

Lesson

Activities

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References

Check Answer

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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What’s More: Activity 1: Fair or Not Fair?

Procedure:

2. Answer the given questions. Write your answer on a separate sheet of paper.

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1. What are the initial observations in the situation?

There are crushed eggshells in the pots of orchids. The orchid’s leaves are dark green in color.

2. Can you identify the real problem in the experiment?

Do eggshells affect the growth of the orchids?

3. What were the tentative explanations to the problem?

Orchids with eggshells will have greener leaves than those without eggshells because as the eggshells decompose the shells will provide nutrients to the orchids.

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Overview

Objectives

Lesson

Activities

Evaluation

References

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What’s More: Activity 1: Fair or Not Fair?

Procedure: 2. Answer the given questions. Write your answer on a separate sheet of paper.

4. How did Janna find out if the explanations to the problem are correct?

Janna and her father prepared a greenhouse and conduct an experiment. They bought 10 pots of orchids of the same variety, size and age. Janna arranged the 5 pots in the left corner and another 5 pots in the right corner. She also made an initial record of the appearance of the orchids. Janna and her father collected eggshells and crushed them and distribured equally among the 5 pots in the right corner. The orchids were taken care of for 45 days.

5. Was there a fair testing in Janna’s experiment? Explain.

Yes, there was a fair testing in the experiment. Only one variable was changed during the experiment. The pots with eggshells and without the eggshells were considered.

Overview

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Activities

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References

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What’s More: Activity 1: Fair or Not Fair?

Procedure: 2. Answer the given questions. Write your answer on a separate sheet of paper.

6. How did Janna solve her problem?

Janna applied the step by step process in solving her problem. She discovered that eggshells can be used as fertilizer for the orchids and they make the leaves of the orchids greener.

7. Enumerate the variables in Janna’s experiment.

The variables in Janna’s experiment are the factors used in her investigation:

kind of plant- constant variable

amount of eggshells- independent variable

condition of the plant- dependent variable

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8. How do you differentiate the types of variables in an experiment?

Independent variable is the condition that is varied or manipulated. Dependent variable is the condition that results from manipulation. The condition that is controlled or kept the same in the experiment is called the constant variable.

Overview

Objectives

Lesson

Activities

Evaluation

References

ACTIVITY 3

ACTIVITY 1

ACTIVITY 2

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Overview

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What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

A.

Step 1 _________________

Step 2 _________________

Step 3 _________________

Step 4 _________________

Step 5 _________________ electric fan

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Overview

Objectives

Lesson

Activities

Evaluation

References

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

B.

Step 1 _________________

Step 2 _________________

Step 3 _________________

Step 4 _________________

Step 5 _________________ flashlight

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Overview

Objectives

Lesson

Activities

Evaluation

References

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

C.

Step 1 _________________

Step 2 _________________

Step 3 _________________

Step 4 _________________

Step 5 _________________ faucet

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Overview

Objectives

Lesson

Activities

Evaluation

References

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

D.

Step 1 _________________

Step 2 _________________

Step 3 _________________

Step 4 _________________

Step 5 _________________ laptop

Check Answer

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Overview

Objectives

Lesson

Activities

Evaluation

References

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

A. Electric Fan

Step 1: Find out the problem. Why the electric fan does not work?

Step 2: Gather data. Observe the electrical cords and the power supply.

Step 3: Make hypothesis. Maybe the electrical cord is broken. Maybe there no power supply. Maybe its brown out.

Step 4: Test the hypothesis. Check and connect the electrical cord to the electrical outlet. Check if there is electrical power.

Step 5: Make your conclusion by finding the best solution. If it will not work, bring it to the technician.

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Overview

Objectives

Lesson

Activities

Evaluation

References

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

B. Laptop

Step 1: Identify the problem. What is wrong with the laptop? The laptop is not working.

Step 2: Collect information. Nothing happens when you press the power button. The laptop is not turning on.

Step 3: Make hypothesis. Maybe the battery is low. Maybe the battery is removed. Maybe the laptop is outdated. Maybe the charger is broken.

Step 4: Test the hypothesis. Turn on with the charger connected to power outlet. Check the supply of electricity at home.

Step 5: Finding the best solution. If not yet working, bring it to the technician for repair.

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Overview

Objectives

Lesson

Activities

Evaluation

References

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

C. Flashlight

Step 1: The problem is that the flashlight does not work.

Step 2: The flashlight does not give light.

Step 3: Maybe the flashlight has a broken bulb. Maybe the batteries are old. Maybe there are rust in the wire.

Step 4: Examine the parts of the flashlight. Wipe the bulb. Turn the flashlight on.

Step 5: Change the battery or get a new battery if necessary.

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ACTIVITY 3

Overview

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ACTIVITY 2

ACTIVITY 1

What I Have Learned

The pictures below show some problems that need to be solved immediately. Identify the problem in each picture and write the steps that you are going to follow to solve each problem scientifically. Use a separate sheet for your answers.

D. Faucet

Step 1: The problem is the lack of water supply in the faucet.

Step 2: No water is coming out from the faucet.

Step 3: Maybe there is water interruption in the community. Maybe there are leaks in the water pipes. Maybe the water pipe is clogged.

Step 4: Call and ask somebody from the Manila Water Company. Watch television for water updates. Ask your neighbor about the supply of water.

Step 5: Pay your water bill and wait for water supply.

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ACTIVITY 2

Overview

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Lesson

Activities

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What I Can Do:

List one problem that exists in your area or community. Guided by the scientific method, enumerate the activities that can be done to solve the problem in your community. Use a separate sheet for your answers.

__________________________________________________________

__________________________________________________________

__________________________________________________________

ACTIVITY 3

ACTIVITY 1

Check Answer

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ACTIVITY 2

Overview

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Lesson

Activities

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What I Can Do: List one problem that exists in your area or community. Guided by the scientific method, enumerate the activities that can be done to solve the problem in your community. Use a separate sheet for your answers.

ACTIVITY 3

ACTIVITY 1

Some problems in the community are noise in the neighborhood, by-standers in the street, improper disposal of waste and others.

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That’s all for our lesson 1. Now, let’s check what you’ve learned!

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Click the arrow then select the Assessment for this Lesson.

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LESSON 1:

Assessment

LESSON 2:

Assessment

Click the Lesson Number to access its Assessment

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Assessment

Choose and click the letter of the best answer.

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Start the Quiz

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Assessment:

Directions:Choose and click the letter of the best answer

        • “I think crushed salt dissolves faster than rock salt” is a/an:

problem

​

hypothesis

​

conclusion

​

observation

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • When you record the height of a plant in your garden everyday for 28 days, what were you doing?

designing an experiment

​

formulating a hypothesis

​

gathering data

​

making a conclusion

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • An investigation was done to see if the time the candle burns affects the height of the candle. Which is the independent variable?

height of the candle

​

length of time

​

color of the candle

​

number of candle

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • Why is it advisable to conduct more than one trial even though the first one produced a good, favorable result?

Because there might be an error in the first one

​

Because more experiments mean more conclusions

​

Because consistency of result is highly desired

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Because there might be new results or outcomes

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • Which sequence would reflect the scientific process of solving a problem?

​

Observation, Experiment, Hypothesis

​

Experimentation, Conclusion, Observation

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Conclusion, Hypothesis, Observation

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Hypothesis, Experimentation, Conclusion

A

B

C

D

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Directions: Choose and click the letter of the best answer.

​

Let’s test what you know

Excellent! Answer the next question please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Nice try! Answer the next question please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Excellent! Click the arrow please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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Directions: Choose and click the letter of the best answer.

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Let’s test what you know

Nice try! Click the arrow please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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What is your score? Did you get it all? That’s all for our lesson 1. I hope you learned a lot!

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Click the arrow then select the Additional Activity for this Lesson.

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LESSON 1:

Additional Activities

LESSON 2:

Additional Activities

Click the Lesson Number to access its Additional Activities

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Additional Activities

​

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Identify some common household wastes that your family mostly disposed as trashes. Construct a chart that shows how you manage your wastes properly. Use a separate sheet of paper.

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Go back to the Lesson Menu and select

the next lesson

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LESSON 2: Qualitative and Quantitative Observations

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Scientists ask questions about the things they observe. Even if you are not a scientist, you also ask questions about what you see around you. You make observations about objects, events, and phenomena. You also gather data about these objects and events to find the truth.

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What’s in: Examine the situation below and provide possible solution/s using the scientific method. Do this on a separate sheet of paper.

Situation:

Most places in Marikina City were severely flooded during the occurrence of Super Tyhoon Ondoy last September 26, 2009. It was a devastating tropical cyclone for it caused billions of damages to properties and affected hundreds of lives. As one of the residents of Marikina City, with the assistance of the local government, how will you help minimize the damages if another super typhoon hits Metro Manila again?

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What’s in: Examine the situation below and provide possible solution/s using the scientific method. Do this on a separate sheet of paper.

See Rubrics

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What’s in: Examine the situation below and provide possible solution/s using the scientific method. Do this on a separate sheet of paper.

Rubrics for scoring:

Scientific Approach: 50%

Relevance: 30%

Creativity: 20%

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What’s New?:Follow the instructions below accordingly. Do this on a separate sheet of paper.

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Activities

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References

  1. Guimaras is the “Mango Capital of the Philippines”. It’s one of the producers of the sweetest mangoes in the world. Draw a ripe mango on the box, put the appropriate color then click the “Guide Questions” to answer them.

Guide Questions

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  1. What is the color of the ripe mango?

___________________________________________________

  1. What is the probable color of the unripe mango?

___________________________________________________

  1. Is there a difference with the smell of the ripe and unripe mango? If Yes, how are they different in terms of smell?

___________________________________________________

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What’s New?:Follow the instructions below accordingly. Do this on a separate sheet of paper.

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  1. Egg is rich in protein that helps muscles perform its duties. There are a lot of ways to cook it like frying and boiling. Since it is one of the primary and common commodities at home, count the number of raw eggs found in your home.

​

___________

Guide Questions

Count of raw eggs

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What’s New?:Follow the instructions below accordingly. Do this on a separate sheet of paper.

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  1. How many raw eggs were bought by your parents today?

___________________________________________________

  1. How many cooked eggs can you eat during lunch?

___________________________________________________

  • How many parts are there in a raw egg?

___________________________________________________

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What is it?

​

There are two ways on how you can do your observations when conducting scientific investigation. It could be qualitative observation or quantitative observation. Identifying the color, smell, shape, and texture are qualitative observations. These observations focus on the quality of the object. Counting items like number of shoes sold per day, number of likes or hearts collected in your social media post, and number of steps you took while walking from house to school are all examples of quantitative observations.

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What is it?

​

These kinds of observations are essential in following the scientific methods to come up with the most appropriate and effective solution to the problem. This will be done with the coordination of two or more of your sense like hearing, smelling, touching, seeing, and tasting.

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What is it?: Now, let us try to make very good observations on the following objects or events found at your house. Number 1 is already done for you. Do this on a separate sheet of paper.

Overview

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References

Object/Event

Quantitative observations

Qualitative observations

1. Plates found in your kitchen

There are 10 plates found in our kitchen

All of them are made up of ceramic

2. Light bulbs

__________________________________

________________________________

3. Washing your clothes

__________________________________

________________________________

4. Slippers

__________________________________

________________________________

5. Plants in your backyard

__________________________________

________________________________

6. Chairs in your living room

__________________________________

________________________________

7. Uncooked rice

__________________________________

________________________________

8. Picture frames

__________________________________

________________________________

9. Electric fans

__________________________________

________________________________

10. Water in a glass

__________________________________

________________________________

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What is it?

​

Now that you are capable of making observations through qualitative and quantitative processes, it is time to use this skill in making an investigation.

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What is it?: You decided to make a coffee for your parents while they are working from home to help them concentrate and make progress, but your father told you that there is something wrong with the coffee you made. Give your possible observations regarding the coffee you made.

Overview

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Click the ACTIVITIES Tab and follow instructions

Overview

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Activities

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What is it?

​

Since you were able to determine what is wrong with the coffee, the next time you will prepare it for them, it will now be according to their liking. Don’t be afraid to make progress.

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ACTIVITY 1

ACTIVITY 2

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ACTIVITY 3

LESSON 2: Qualitative and Quantitative Observations

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What’s More:

Activity 1: Are You A Keen Observer?

Let’s try this activity to help you make relevant and appropriate observations. Read the directions below carefully.

You were asked by your mother to buy goods in the market. Make an observation of the following objects in the store. Click the next button and type your answers in the textboxes.

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What’s More: Activity 1: Are You A Keen Observer?

You were asked by your mother to buy goods in the market. Make an observation of the following objects in the store. Write your answer on a separate sheet of paper.

Guide Questions

Objects

Color

Size

(Small, Medium, Large)

Shape

Texture

(Smooth or Rough)

No. of Pieces

Watermelon

_______

_______

_______

_______

_______

Banana

_______

_______

_______

_______

_______

Tag prices

_______

_______

_______

_______

_______

Egg plant

_______

_______

_______

_______

_______

String beans

_______

_______

_______

_______

_______

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Overview

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Activities

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What’s More: Activity 1: Are You A Keen Observer?

You were asked by your mother to buy goods in the market. Make an observation of the following objects in the store. Write your answer on a separate sheet of paper.

  1. What materials have similar properties?

___________________________________________________________________

  1. What properties made the materials distinct from others?

___________________________________________________________________

  1. How did you observe the materials?

___________________________________________________________________

  1. What do you call the information gathered directly by your senses?

___________________________________________________________________

  1. Which of the observations are Qualitative? Quantitative?

___________________________________________________________________

  1. When does an observation become qualitative or quantitative?

___________________________________________________________________

Check Answers

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References

What’s More: Activity 1: Are You A Keen Observer?

You were asked by your mother to buy goods in the market. Make an observation of the following objects in the store. Write your answer on a separate sheet of paper.

Objects

Color

Size

(Small, Medium, Large)

Shape

Texture

(Smooth or Rough)

No. of Pieces

Watermelon

Green

Large

Sphere

Smooth

3 pcs.

Banana

Yellow

Medium

Moon-shape

Smooth

2 bunches

Tag prices

Yellow

Medium

Rectangle

Smooth

6 pcs.

Egg plant

Violet

Medium

Oblong

Smooth

6 pcs.

String beans

Green

Small

Rolled

Smooth

4 bunches

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Activities

Evaluation

References

What’s More: Activity 1: Are You A Keen Observer?

You were asked by your mother to buy goods in the market. Make an observation of the following objects in the store. Write your answer on a separate sheet of paper.

Guide Questions:

  1. Color: Watermelon and String beans, Banana and Tag price

Size: Banana, Tag, prices, and Eggplant

Texture: all of them

No. of pieces: Tag price and egg plant

  1. Shape, Color, Size, No. of pieces
  2. Using senses
  3. Observations
  4. Qualitative Observations: Size, Color, Shape, Texture

Quantitative Observations: No. of pieces

  1. Quantitative observations are countable and be measured using measuring instruments which are the opposite of the Quantitative Observations

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What’s More:

Activity 1: Are You A Keen Observer?

When observing things around you, you use your senses to find descriptive words or numbers to tell the properties of the materials or events. When inferring, you give information that is not gathered directly by your senses and you are explaining why things are happening based on what you have heard or learned before.

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What’s More: Activity 1: Observing or Inferring?

Let us make inferences by examining the following data below.

Provide additional information to the given situations by giving explanations or relating each situation to your past experiences using the diagrams below. Write your answer on a separate sheet of paper.

Part B

Part A

Part C

A.

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Evaluation

References

What’s More: Activity 1: Observing or Inferring?

Let us make inferences by examining the following data below.

Provide additional information to the given situations by giving explanations or relating each situation to your past experiences using the diagrams below. Write your answer on a separate sheet of paper.

Part B

Part A

Part C

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What’s More: Activity 1: Observing or Inferring?

Look at the picture below and tell whether the statement is an observation (O) or inference (I). Write your answers on a separate sheet of paper.

C.

____ 1. There are plants around the girl and the puppy.

____ 2. The puppy and the girl are playing.

____ 3. The girl comes from a rich family.

____ 4. There are big flowers in the backyard.

____ 5. The puppy is trained.

____ 6. The puppy is running with his tongue sticking out.

____ 7. The girl and the puppy are both happy.

____ 8. The plants in the backyard are healthy.

____ 9. Some plants are tall others are small.

____ 10. The flowers are fragrant

Guide Questions

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Guide Questions:

  1. Is it observing or inferring when you get information using your senses?

_____________________________________________________

  1. Is it observing or inferring when you explain information based on your prior knowledge or past experiences?

_____________________________________________________

  1. How do you distinguish an observation from an inference?

_____________________________________________________

Check Answers

What’s More:

Activity 1: Observing or Inferring?

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What’s More:

Activity 1: Observing or Inferring?

  1. The clouds are dark

​

• There is a coming thunder storm

• There will be suspension of classes

• Flooding are most likely to happen

• Water level will rise from the river or dams

• Storm Surge will be observe near the coastline

• Rice fields will be watered

• Children will come out and take a bath with the rain

• Cockroaches and other small organisms will come out from their nest

• Others

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What’s More:

Activity 1: Observing or Inferring?

  1. A friend has to visit a doctor

​

• He might not feeling well

• He may refer or introduce new brands of medicine

• He has a regular consultation check up with the doctor

• He needs to interview the doctor about the current health issues

• He just wanted to give a gift for taking care of his health issues very well

• He needs another and new receipt of his medication.

• He will request for medical certification for he was absent yesterday

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What’s More:

Activity 1: Observing or Inferring?

  1. A friend has to visit a doctor

​

  1. O
  2. O
  3. I
  4. O
  5. I
  6. O
  7. I
  8. I
  9. O
  10. I

ACTIVITY 1

ACTIVITY 2

ACTIVITY 3

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Lesson

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References

What I Have Learned

This lesson will teach you to think critically and avoid being judgmental (quick to judge) about any person or situation. This will be the key in solving problems in the most scientific way.

Below are the following scenarios that you need to make observation or inference. Write your observation or inference on a separate sheet of paper.

  1. ________________________

________________________

________________________

________________________

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Evaluation

References

What I Have Learned

This lesson will teach you to think critically and avoid being judgmental (quick to judge) about any person or situation. This will be the key in solving problems in the most scientific way.

Below are the following scenarios that you need to make observation or inference. Write your observation or inference on a separate sheet of paper.

2. ________________________

________________________

________________________

________________________

​

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Lesson

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Evaluation

References

What I Have Learned

This lesson will teach you to think critically and avoid being judgmental (quick to judge) about any person or situation. This will be the key in solving problems in the most scientific way.

Below are the following scenarios that you need to make observation or inference. Write your observation or inference on a separate sheet of paper.

3. ________________________

________________________

________________________

________________________

​

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Lesson

Activities

Evaluation

References

What I Have Learned

This lesson will teach you to think critically and avoid being judgmental (quick to judge) about any person or situation. This will be the key in solving problems in the most scientific way.

Below are the following scenarios that you need to make observation or inference. Write your observation or inference on a separate sheet of paper.

4. ________________________

________________________

________________________

________________________

Check Answers

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References

1. Observation: The egg is on the table

Inference: The egg was dropped accidentally

​

2. Observation: The flower is color violet

Inference: the plant is getting enough nutrients from the fertilizer

​

3. Observation: the dumbbell is 5kg

Inference: It is old

​

4. Observation: There is water inside the pitcher

Inference: The water is cold

ACTIVITY 3

ACTIVITY 2

ACTIVITY 1

What I Have Learned

This lesson will teach you to think critically and avoid being judgmental (quick to judge) about any person or situation. This will be the key in solving problems in the most scientific way.

Below are the following scenarios that you need to make observation or inference. Write your observation or inference on a separate sheet of paper.

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What I Can Do: Choose a current issue that your community is facing right now.

Write your own observations and inferences on the freedom wall below. Categorize your observations and inference into qualitative and quantitative. Do this on a separate sheet of paper.

ACTIVITY 1

ACTIVITY 3

Overview

Objectives

Lesson

Activities

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References

ACTIVITY 2

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That’s all for our lesson 2. Now, let’s check what you’ve learned!

​

Click the arrow then select the Assessment for this Lesson.

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Lesson

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Assessment

Choose and click the letter of the best answer.

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Start the Quiz

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Assessment:

Directions: Choose and click the letter of the best answer

        • Which of the following is a quantitative observation?

The sugar is sweet.

​

The coffee granules dissolve well in hot water.

​

The solution is blue.

​

Alcohol has 70 ml ethanol

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • You saw that the plant in front of your window is turning yellow. What can you infer about the situation?

The plant needs water and sunlight.

​

The plant is sad and lonely.

​

The plant is really yellow.

​

The plant will soon die.

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • The temperature of the room is decreasing by 4 degrees Celsius. This kind of observation is _______.

Qualitative

​

Quantitative

​

Both

​

Neither

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • During a strong rain, you noticed that the light inside your house is fluctuating. What is your prediction based on this observation?

The electricity will explode.

​

Brownout may happen.

​

The storm will become stronger.

​

There is an incoming earthquake.

A

B

C

D

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Assessment:

Directions:Choose and click the letter of the best answer

        • You heard that the dog near the gate is barking loud and you thought that there is a stranger. What is your observation?

​

The stranger has a dog.

​

The dog jumped over the gate.

​

There is a stranger in the gate.

​

The dog is barking loud.

A

B

C

D

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Directions: Choose and click the letter of the best answer.

​

Let’s test what you know

Excellent! Answer the next question please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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SCIENCE 7: FIRST QUARTER

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Directions: Choose and click the letter of the best answer.

​

Let’s test what you know

Nice try! Answer the next question please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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SCIENCE 7: FIRST QUARTER

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Directions: Choose and click the letter of the best answer.

​

Let’s test what you know

Excellent! Click the arrow please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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SCIENCE 7: FIRST QUARTER

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Directions: Choose and click the letter of the best answer.

​

Let’s test what you know

Nice try! Click the arrow please.

Question No. 2

Question No. 3

Question No. 4

Question No. 5

Question No. 1

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SCIENCE 7: FIRST QUARTER

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What is your score? Did you get it all? That’s all for our lesson 2. I hope you learned a lot!

​

Click the arrow then select the Additional Activity for this Lesson.

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Additional Activities

From your chosen issue that your community is facing right now, ask your family, relatives, or friends to give their own observations and inferences about the issue. Categorize their observations or inference on the freedom wall below. This will help you get another perspective about the issue that will enable you to make scientific judgement. Do this on a separate sheet of paper.

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You’ve made it to the last lesson of this Module.

You may now take the Posttest.

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • The orderly and systematic approach in solving problems is called ___________.

​

​

Conclusion

​

Experiment

​

Conclusion

​

Scientific Method

Posttest

Directions: Choose and click the letter of the best answer.

B

C

D

A

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Posttest

Directions: Choose and click the letter of the best answer.

​

For numbers 2 and 3:

You tried to investigate how fast powdered juice dissolves in cold and in hot water.

I. The temperature of water.

II. The amount of powdered juice that completely dissolves in hot water.

III. The amount of powdered juice that completely dissolves in cold water.

IV. The length of time it takes for the powdered juice to completely dissolves.

​

            • What is the dependent variable?

I only I, II and III II and III I, III and IV

            • What is the dependent variable?

I only I, II and III II and III I, III and IV

A

B

C

D

A

B

C

D

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Posttest

Directions: Read the paragraph then click the arrow for the questions.

​

For numbers 4-8:

You always join your father when he is watering the plants in your garden. You noticed that a certain part of the garden is covered in shade and the other part of the garden is exposed to sunlight. You also noticed that the plants in the shaded area have yellow leaves and shorter in height.

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        • What is the problem in the given situation?

​

​

Can the amount of sunlight affect the growth of plants?

​

Can earthworms make the plants healthy?

​

Did my father use fertilizer to make the plants healthy?

​

Can water affect the growth of plants?

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • What can be the best hypothesis you can formulate from the situation?

​

​

Sunlight can make the plants grow healthy

​

Sunlight can burn the leaves that can turn it to yellow

​

Sunlight can cause the dehydration of the plant

​

Water can make the plants grow healthy

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • If you are to design an experiment regarding this, what will be the dependent variable?

​

​

The amount of sunlight

​

The number of earthworms

​

Condition of the plant

​

Amount of water

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • What factors will you keep constant or unchanged?

​

​

The amount of water and fertilizer.

​

The amount of sunlight.

​

The amount of water, air, and fertilizer.

​

The amount of sunlight, water, air, and fertilizer.

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • What is the independent variable?

​

​

The amount of sunlight

​

The amount of water

​

The amount of sugar

​

The amount of fertilizer

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • In doing scientific investigations, what is the next step after identifying the problem?

​

​

Formulate a hypothesis

​

Gather relevant data

​

Prepare a conclusion

​

Test the hypothesis

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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        • The statement “I think crushed salt dissolves faster than rock salt” is a/an:

​

​

problem

​

hypothesis

​

conclusion

​

observation

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • You saw that the plant in front of your window is turning yellow. What can you infer about the situation?

​

​

The plant needs water and sunlight

​

The plant is sad and lonely

​

The plant is really yellow

​

The plant will soon die

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Overview

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Activities

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References

        • During a strong rain, you noticed that the light inside your house is fluctuating. What is your prediction based from this observation?

​

​

The electricity will explode

​

Blackout may happen

​

The storm will become stronger

​

There is an incoming earthquake

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • Which sequence would reflect the steps a scientist would follow when solving a problem?

​

​

Observation, Experiment, Hypothesis

​

Conclusion, Hypothesis, Observation

​

Experimentation, Conclusion, Observation

​

Hypothesis, Experimentation, Conclusion

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • An investigation was done to see if the time of studying science affects the score the students get in the test . Which is the independent variable in the investigation?

​

​

length of time to study science

​

number of students

​

score in the science test

​

subject for testing

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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        • Which of the following is a quantitative observation?

​

​

The sugar is sweet.

​

The coffee granules dissolve well in hot water.

​

The solution is blue.

​

Alcohol has 70 ml ethanol.

B

C

D

A

Posttest

Directions: Choose and click the letter of the best answer.

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Excellent! Answer the next question please.

Question Nos.

2 & 3

Question No. 1

Question No. 4

Question No. 5

Question No. 7

Question No. 6

Question No. 9

Question No. 8

Question No. 10

Question No. 12

Question No.11

Question No. 14

Question No. 13

Question No. 15

Posttest

Directions: Choose and click the letter of the best answer.

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Nice try! Answer the next question please.

Posttest

Directions: Choose and click the letter of the best answer.

Question Nos.

2 & 3

Question No. 1

Question No. 4

Question No. 5

Question No. 7

Question No. 6

Question No. 9

Question No. 8

Question No. 10

Question No. 12

Question No.11

Question No. 14

Question No. 13

Question No. 15

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Excellent! Answer the next question please.

Posttest

Directions: Choose and click the letter of the best answer.

Question Nos.

2 & 3

Question No. 1

Question No. 4

Question No. 5

Question No. 7

Question No. 6

Question No. 9

Question No. 8

Question No. 10

Question No. 12

Question No.11

Question No. 14

Question No. 13

Question No. 15

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Nice try! Answer the next question please.

Posttest

Directions: Choose and click the letter of the best answer.

Question Nos.

2 & 3

Question No. 1

Question No. 4

Question No. 5

Question No. 7

Question No. 6

Question No. 9

Question No. 8

Question No. 10

Question No. 12

Question No.11

Question No. 14

Question No. 13

Question No. 15

*

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SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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What are your scores? your score? Did you get it all? That’s all for our lessons in Module 1. I hope you learned a lot!

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References

*

MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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  • Allas, I.M.F., et. al. Discover Science 7 K to 12 Edition Textbook pp.18-55. DIWA LEARNING SYSTEMS INC. 2013.
  • Fatt, C.K., et. al. Science Adventure for Secondary 1 pp.5-8. Marshall Cavendish Education. 2000.
  • Madriaga, E.A., et. al. General Science (Science and Technology 1) pp. 10-16. Rex Printing Company, Inc. 1994.
  • Rabago Ph. D., L.M., et. al. Science and Technology 7 pp.28-34. Vibal Publishing House, Inc. 2014.
  • University of the Philippines National Institute for Science and Mathematics Education Development for the Department of Education. DEPED. Integrated Science( Science and Technology for First Year Textbook) pp. 10-41. 1989.

REFERENCES

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MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1

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Writer: Analisa O. Gaodgaod & Jemwel Dela Paz

Editors:

Content Editors: Marites R. Del Valle

Romencita D. Gollayan

Jessica S. Mateo

Jeffrey C.Trinidad

Language Editors: Kristine Joyce G. Montejo

Reviewer : PNU External Validators

Illustrator & Layour Artist: May Anne G. Pasco

E-Designer: Beverly V. Suarez

Management Team: Sheryll T. Gayola Assistant Schools Division Superintendent

OIC, Office of the Schools Division Superintendent

Elisa O. Cerveza Chief, CID

OIC, Office of the Assistant Schools Division Superintendent

Jessica S. Mateo EPS-Science

Ivy Coney A. Gamatero EPS – LRMS

Development Team of Modules

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MODULE TITLE: SCIENTIFIC INVESTIGATION

SUBJECT: SCIENCE 7 QUARTER: 1 MODULE: 1