Tour of the human body "systems" continues

The elementary school is in the middle of the rotation on the circulatory, excretory, immune and nervous systems. Pam's groups (immune system) are exploring killer cells; Juniper's groups (excretory system) are playing digestive system games,; Sunshine's group examined a real sheep's brain; and the middle schoolers are honing their experimental skills, measuring their heart rates before and after exercising and are busy working on their research papers.