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Demonstration Teaching in Science

Prepared By:

RIENALYN B. CALINGASAN

Division of Batangas Province

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Song

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Game: Find Me if You Can

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Game: Is it a PULL or PUSH

PUSH

PULL

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PUSH

PULL

PULL

PUSH

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Unlocking of Difficulties

pushing

squeezing

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Unlocking of Difficulties

twisting

stretching

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Unlocking of Difficulties

pressing

bending

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Activity Involvement

Effects of force on the shape of an object.

“What are the effects of force on the shape of an object?”

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Materials

rubber band news paper modeling clay colored paper

paper clip plastic drinking bottles

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What To Do

1.Observe each of the solid materials given in Column A.

2. Change the shape of the materials found in Column A by applying force on it.

3. Fill out Column B with what you did to change the shape of the materials. You can write as many as you can.

4. Fill out Column C with changes that took place after you have applied force on the materials

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Object

What I did to change the shape of the materials?

What changes took place after I have applied force on the materials?

Rubber band

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Modelling clay

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Colored Paper

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Paper Clip

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candy

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Plastic drinking bottle

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News Paper

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Report of output by the pupils.

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1. What did you apply when you bend, crumple or cut an object?

2. What happened to an object when force is applied? Why?

3. From what you experiences, what is the effect of force to an object

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Video # 3

Video # 2

Video # 1

Video # 4

Video # 5

Video # 6

Video # 7

Video # 8

Video # 9

Video # 10

Video # 11

Video # 12

Let us tell how objects are change

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Video

Tacloban Before and After Yolanda

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How can you describe Tacloban before the super typhoon? after the typhoon?

What do you think the effect of the force of the super typhoon Yolanda towards Tacloban?

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How did you feel while watching the video?

How can you help other people who experience this kind of typhoon?

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Directions: Read the following sentences and choose the letter of the correct answer.

1.How can you change the shape of an electrical wire?

A. by pressing B. by squeezing

C. by bending D. by pushing

2. The following objects can be cut except one?

A. rubber band B. rope

C. paper D. stone

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3. Mel has a bigger body size than his brother Mac. He tried to use his brother’s t-shirt without asking permission. It doesn’t fit him so he tried to stretch it. What do you think will happen to the t-shirt?

a. It will be fitted to him.

b. It will tear.

c. The shape of the Tshirt will still be useable.

d. Nothing happens.

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4. Which of following activities that apply force cannot change the shape of an object?

A. throwing the paper clip

B. cutting a paper

C. sharpening a pencil

D. pulling a rubber band

5. What will happen to the shape of the balloon when force is applied?

A. It. will change. B. It will remain.

C. It will move. D. Still the same

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Assignment:

Cite another examples/situations when the force applied changed the shape of an object