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Semipermeable Membranes and Bioaccumulation
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....
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Exposure!
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...
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Chick Chock's Pollen Problem
Students analyze how allergens effect the body and how air borne substances can effect people.
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Toxicology Puzzle
In this toxicology worksheet, students complete a crossword puzzle given 27 clues about terms related to toxins and the exposure to toxins.
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Fertilizers, Pesticides and Human Health
Students define several vocabulary terms related to chemicals and toxicology. Students calculate chemical concentrations in water and explain the toxicological principles that govern safety of substances. Students conduct an...
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The Dose Makes The Poison
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.
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Chemicals, Chemicals, Everywhere
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...
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What is the Risk?
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 instructional activity.
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Toxic River
Students explore environmental safety by participating in a class game. In this toxic chemicals lesson, students discuss the effect chemicals have on our environment and how to best protect against their dangers. Students participate in...
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Introduction to Toxicology
Students explore the science of toxicology and the relationship between a toxic reaction (response) and amount of substance (dose). They observe two demonstrations illustrating the concept of dose-response.
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Environmental Hazards
Students identify environmental hazards on a simulated field trip. They analyze the exposure and suggest methods to eliminate or reduce exposure to toxic sources.
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Toxicology 2: Finding the Toxic Dose
Students brainstorm with group partners to decide upon a chemical they would like to test, and outline a procedure for their investigation. They then present in groups their ideas to the rest of the class as well as the chemical they...