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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 homemade pump using a balloon, a mason jar, and some straws.

In this activity, learners make a model of a one-way heart valve to investigate how a heart controls the direction of blood flow.

In this activity, learners explore how eating unhealthy food can damage a heart and arteries.

Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper.