Body

7 Splashes.

1. Beating HeartThe heart is a muscle that pumps blood around the body.
2. BrainThe brain is the body's control center.
3. EyeLight goes in through the pupil, the black hole in the middle, and a lens focuses it onto the retina at the back, which sends a picture to the brain.
4. LungsThe lungs are two spongy organs in the chest that bring air into the body.
5. ToothA tooth is made in layers.
6. KidneyThe kidneys are two bean-shaped organs, each about the size of a fist, tucked in the back just below the ribs.
7. Anatomy AtlasAn anatomy atlas shows the body in layers, the way a medical textbook does.