Encyclopedia of Earth
Encyclopedia of Earth: Toxicology: Heavy Metal
Defines heavy metals, describes physical and chemical properties, discusses how heavy metals find their way into plants and animals, and the negative impact they have.
BSCS Science Learning
Bscs: Heavy Metals in Waterways
This inquiry focuses on heavy metals in waterways in Colorado. Learners will learn about heavy metals and data collected about them from citizen scientists, and then analyze the data in tables and maps to identify possible evidence of...
US Environmental Protection Agency
Epa: Mercury
This site provides a user navigated slide show with animations providing basic information about the element Mercury.