Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....

Students investigate that chemicals may affect different people in different ways. They also realize that their perceptions of dangerous materials may not be realistic and that the news media may not provide all the information needed to...

Students observe beakers of water that contain different amounts of a mystery chemical. They discuss how each amount of the chemical might affect them if the chemical was beneficial or harmful to their bodies.

Students divide substances into categories: made of chemicals/not made of chemicals, synthetic/naturally occurring, and toxic/nontoxic. They observe a mystery chemical and determine what precautions they need to take when handling an...

Students investigate the 1950's pollution tragedy in Minamata, Japan. The elements of dose, response, individual susceptibility, potency, and threshold of toxicology are explored in this lesson plan.

Students identify environmental hazards on a simulated field trip. They analyze the exposure and suggest methods to eliminate or reduce exposure to toxic sources.