What do you know about the circulatory and respiratory systems?

A group of five third graders created a list of questions to test their classmates' understanding of the circulatory and respiratory systems.  Here are some responses to three of the questions:

Tell me in your own words what white blood cells do.

 Kiran:  The white blood cells fight infections and if you didn’t have them then when you get an infection and there would be nothing to fight against infections.

If you could choose to be a blood cell, which would you be?

 Sam:  I would be the white blood cell because I want to protect people’s bodies from getting infections and getting sick. 

What part of the blood are you most like?

 Anna:  I think I am most like a platelet because I am sort of clingy and I like to be important.  Important, like very helpful but not well known.