Simple, humorous text and comic illustrations explain the basics of the circulatory system--the systemic, pulmonary, and coronary circuits. Readers follow a red

A humorous but factual look at the human digestion process.

With step-by-step directions, lessons, projects, cooperative learning activities and more, here are reproducible cut-and-paste patterns for assembling and under

You've seen your own blood, when you have a cut or a scrape. You can see the veins in your wrist, and you've seen the scab that forms as a cut heals. But do you

This book includes 10 lectures in a light, entertaining style, with each "lecture" building on the previous one - making it easy for the reader to comprehend th