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Your heart pumps blood throughout your body in one direction, around in a loop. In this activity, learners will make a model of one type of heart chamber called a ventricle.

Learners will build a lung model to understand how their lungs and diaphragm work to make them breathe.

Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

Doctors often send a sample of blood to a lab, to make sure their patients are healthy.

In this activity, learners make balloon models of disease-causing bacteria.