We have been learning about how exercise can affect your breathing. So to begin we had the students get three plastic cups with one cup of water in each, put one drop of food coloring in each, and place a straw in each cup.
After they stired the food coloring in, one student then had to preform an exercise and then come back and blow in the cup. The first exercise was walking, second was jogging, and the last was jumping jacks. After each exercise they blew through the straw into the cup.
(Sorry it is sideways)
(Once again sideways, sorry)
Here is one of the results. If you look at the bottom of the cup, it is a lighter color, almost cloudy. This is because they are blowing carbon dioxide into the cup. The lighter layer at the bottom varied after each exercise. Can you guess which exercise had the biggest layer at the bottom?
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