Students identify ways that staying clean contribute to good health. They perform an experiment involving potatoes and washed and unwashed hands, observing the results. They complete a cleanliness chart, checking off each healthful habit...

Students discuss importance of cleanliness, specifically hand-washing, in fighting germs and illness. They create cultures of their hands before washing, and then practice proper hand-washing technique.

Middle schoolers experiment by creating an oil spill and trying a number of clean up methods. They determine which methods are the least costly and most effective. They role play as an environmental engineer and as an oil company owner...