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Handout
US Geological Survey

U.s. Geological Survey: Lead Soft and Easy to Cast [Pdf]

For Students 9th - 10th
This detailed resource teaches about lead and the important role it plays in the national economy, national security, and lives of Americans every day. Discover how we use lead, where it comes from, and where future lead supplies might...
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Article
American Institute of Biological Sciences

Action Bioscience: Issues in Environment

For Students 9th - 10th
This site from American Institute of Biological Sciences provides a collection of articles on current issues in environmental science and human impacts on the environment. Several articles available in Spanish.