National Institute of Open Schooling
Radioactive Pollution
Radioactive pollutants can enter the body through ingestion, inhalation, absorption, or injection. The last lesson in a series of 36 introduces pupils to radioactive pollution. They study its sources, both natural and man-made, its...
Curated OER
Shattered Youth
Students examine the state of child labor in the world. For this global economy lesson, students consider the implications of child labor in the world as they research its prevalence.
Other
State of New Jersey Occupational Health: Mercury
Information on mercury exposure sources, treatments symptoms and tests. Very readable.
Encyclopedia of Earth
Encyclopedia of Earth: Uranium
Information about the radioactive element, Uranium, atomic number 92. Describes its history, physical and atomic properties, how abundant it is on the Earth, and permissible exposure limits. Also discusses sources, uses, isotopes,...
Encyclopedia of Earth
Encyclopedia of Earth: Lead
Information about the heavy metal, Lead, atomic number 82. Gives some interesting historical details about lead's use in the past. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about...
US Environmental Protection Agency
Epa: Mercury
This site provides a user navigated slide show with animations providing basic information about the element Mercury.