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Paper 6Alternative to PracticalPractical1 marks
Investigating the effect of exercise on breathing rate.
Method
Method for Measuring Breathing Rate
1. Have a partner perform a set of exercises for 5 minutes. 2. Measure the number of breaths taken in one minute before and after exercise. 3. Record the data in a table.
| Condition | Breathing Rate (breaths/min) |
|---|---|
| Resting | |
| After Exercise |
- a[1]
State the independent variable in this investigation.
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