Living things and the processes of life
 The processes of life

Pupil Activity

Work with a partner

This activity may require asthmatic pupils to take their medication before the exercises.

Materials:

paper, stopwatch, skipping rope (optional)

Method:

• Make a note of each of your resting breathing rates.

• This is the number of breaths you take in one minute.

• To make this easier, time the breaths you take for only 20 seconds.

• Write that answer down and then multiply it by 3.

• This will give you the number of breaths you take in sixty seconds.

• That is the same as a minute.

• Now do an activity like jumping jacks, skipping, stepping, etc. for two minutes.

• Take your breathing rate immediately you stop the exercise.

• Do this the same way you took your resting breathing rate.

Question:

What do you notice about your results?

What is the main effect of exercise on breathing rate?