Middle school environmentalists record the pH of four different liquids, including two aerosol cleaning products. They liken the products to acid rain and speculate in writing which might affect the human respiratory system. Although...

Students are introduced to the nervous system. In groups, they research the relationship between disease and injury and how it affects the nervous system. To end the lesson, they present their findings to the class and create a poster.

Learners review circulation and blood flow patterns from different parts of the body. They play a game using colored yarn and index cards to simulate blood flow, oxygenated blood, arteries and veins.

Learn the importance of practicing good dental hygiene. For auditory learners, a read-aloud feature is also available.