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Wilson and Ella

The amount of Carbon dioxide output before exercising is significantly smaller than the amount of Carbon dioxide output after exercising.

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There will be more CO2 in the balloon after exercise

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Harry & Lucas
Yes there is a difference between before and after exercising because if you have less Co2 than the Ph level is higher and the btb turns green faster

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There is a significant difference in CO2 quantity in exhaled air vs. in exercise as the CO2 quantity in exhaled air after exercise greater than the CO2 quantity in exhaled air at rest.

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the CO2 quantity is higher in exhaled air after exercise than at rest.

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Yes there is a difference between before and after exercise because carbon dioxide removal increases when you start to exercise.

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Clayton and Dalton
There is a higher carbon dioxide level after exercise than at rest because there is more co2 built up in the blood.

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There is a higher concentration of the quantity of carbon dioxide in exhaled air after exercise.

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The quantity of Carbon dioxide is greater after exercise than at rest.

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There are more hydrogen ions when one is exercising

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Some kid are athletes and are trained to breathe more effectively.

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Saron and Nathan
The amount of exercise done by the person and their lung  capacity

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Before= 15 cm
After= 8 cm

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Ameer and Christian

The different people blowing into the balloon.

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Saron and Nathan
7mm before
11mm after

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Harry and Lucas
Before 38

After 18

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Ameer and Christian

42 before, 22 after

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How hard they worked when they exercised.

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how hard the person worked during the exercise time

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There is diffrent lung capacity for everyone therefore there are diffeent amounts of air in the balloons

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Isabella and Morgan
Before: 150mm
After: 120mm

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ava and jale
before:210mm
after:50mm

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Clayton and Dalton

Before 27cm

AFTER 14cm

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lung capacity

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before 36cm
After 34cm

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Everyone had a different amount of air in their balloon.

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how hard you exercise because exercise causes your lungs to work harder and requires more oxygen. which would result in deeper breaths.

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Before:23.5cm
After:11cm

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Lung capacity would be a factor of variation because everyone’s bodies are different and can only hold so much air. Someone who has a higher lung capacity would be able to blow the balloon up larger.

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Capacity to hold in oxygen

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before exercise: (initial) 51 (final) 44
after exercise: (initial) 56 (final) 45

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Before- 7mm
After-13mm

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Before: 53cm
After: 49cm