Heart Throbs

Student Worksheet

1. a) Guess how many times your heart beats in one minute. __________ bpm (beats per minute).
   b) Have your partner take your pulse and record it in the inactive column as ___________ bpm.
   c) Take and record your partner's pulse.

2. a) Jog in place for two minutes.
   b) Record your pulse rate in the active column.
   c) Have your partner jog in place for two minutes.
   d) Record your partner's pulse rate.

3. a) Rest five minutes
   b) Record both your pulse rates in the recovery column.
   c) Have your pulses returned to normal
   d) Is your recovery rate faster then your partner's ?

Extra Challenge:

Calculate: By yourself or with a friend count the number of times your heart beats per minute. Calculate the number of heartbeats in one class period and in one full day. How many days are needed for one million heart beats?

How many times does your heart beat by the age of one year,16 years? You will reach one billion heartbeats in how many years? How many beats in 100 years?

Activites

Arrange the following activities from easiest to hardest. Then do each, take pulse rate, and see if the heart agrees. Allow plenty of time between activities.

• Climbing up and down stairs
• Lying down looking at ceiling
• Walking around the block
• Taking a test

Compare the pulse rate of each of your classmates. Prepare a graph that shows the results. Find the class average. How does your pulse rate compare with the class average? Account for any differences.

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