Carefully read and understand this recording and planning guide so you are systematic in scientific thinking, experimenting, recording and interpreting.

Follow logically through each section so you are thorough in your science investigation steps. p9

Complete each section with details needed so you have carefully logged your project...and so an outsider can know and understand too.

1

My science investigation TOPIC:

Investigating the effect of different types of physical activities on heart rate.

2

My investigation question (hypothesis)

What activity causes high blood pressure?

  • Hypothesis: I think that running as fast as possible on the spot will cause the highest blood pressure.

What activity causes low blood pressure?

  • Hypothesis: I think that sitting will cause the lowest blood pressure.

What is the rate of high blood pressure?

  • Hypothesis: 90-100 mmHg

What is the rate of low blood pressure?

  • 40-80 mmHg

3

Background research and knowledge I will explore as a backdrop to my investigation

Pulse rate is the pressure built up in the veins as the heart pumps blood. mmHg, diastolic (60-80mmHg) and systolic pressure (90-100mmHg).

4

Aim of my investigation

Find out the answers to questions.

5

My investigation steps

Materials / resources / people:

Tennis ball, watch (measuring heart rate), stopwatch.

STEP 1

Put on the watch

STEP 2

Do each activity

STEP 3

After completing an activity, write your heart rate on the table

STEP 4

STEP X

6

My possible recording method

Data collection table:

Name of the Activity

Length of Activity

Beat counted in 30 seconds

Heart Rate

mmHg

Sitting

30 seconds

130 mmHg

Jogging on Spot

30 seconds

136 mmHg

Throwing and Catching ball

30 seconds

130 mmHg

Stretching

30 seconds

131 mmHg

Star Jumps

30 seconds

166 mmHg

Running as fast as possible on spot

30 seconds

177 mmHg

Photos and Videos:

7

Result:

I had the highest blood pressure when running as fast as I could on the spot.

My lowest blood pressure was when I sat for 30 seconds.

The rate of my highest blood pressure was 177 mmHg.

The lowest heart rate was 130 mmHg for sitting and throwing/catching the ball.