BiologyWise
Biology Wise: How the Circulatory System of a Pig Works
Describes the parts of a pig's circulatory system and how its blood circulates. Circulation in a pig fetus is also described as it has differences.
OpenSciEd
Open Sci Ed: 7.4 Matter Cycling & Photosynthesis
Where does food come from and where does it go next? This unit helps students figure out that they can trace all food back to plants, including processed and synthetic food. They obtain and communicate information to explain how matter...
The Franklin Institute
Franklin Institute Online: Your Living Blood: It's Alive!
How does blood supply your body with the nourishment it needs? This site focuses on systemic circulation. Learn more about this fascinating part of your body when you check out this resource.
Science Museum of Minnesota
Lesson Plan: Go With the Flow
For this effective site, pupils 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.