Factors affecting the rate of breathing
Introduction:

After running for a while, you may say that "I am out of breath!". That simply means that you can not breath as fast as your body needs. So running makes you breathe faster.

What other factors can make you breathe faster? How do different factors affect the rate of breathing?
 
 Project description:
In this project you will study one or more factors that may make a person (or an animal) breathe faster. For each factor that you choose to study, perform an experiment and record your observations in a data table. Use your data table to draw a graph.
 Details of this project
More details or support on this project is available for the members section of ScienceProject.com web site. Material needed for experiments can be found at home or obtained locally.