Texas Heart Institute
Anatomy: How Does the Cardiovascular System Work?
How can the circulatory system compare to a city map? Pupils distinguish the "roadways" and "vehicles" of the cardiovascular system, compare the anatomy and function of veins and arteries, and review different types of blood cells with...
Biology Junction
Cellular Structure
The human body contains more than 200 types of cells, and plants contain many other unique types of cells. While a huge variety of cells exist, they appear to have very similar structures. A detailed presentation describes the structure...
UNICEF
Knowing Your Risk for HIV/AIDS
What are the various ways people can become infected with HIV? Build awareness with your pupils and dispel common myths on the transmission of HIV with this resource, which includes a brainstorming activity, group discussion,...
CK-12 Foundation
Ck 12: Life Science: 11.26 Blood
Understand the physiological make-up of human blood.