Science Museum of Minnesota
Lesson Plan: Go With the Flow
In this effective site, students will name the parts of the heart and trace the flow of blood through the body. Contains related links.
BiologyWise
Biology Wise: A Detailed Description of the Anatomy of Spiders
Describes anatomical features of a spider, including its external structure, eyes, mouth parts, digestive system, circulatory system, respiratory system, nervous system, reproductive system, and its spinnerets.
Other
A Look Inside: Human Body
Learn how our body works at this personal site from a fourth grade teacher. Colorful graphics and lots of fun facts.