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Earth Science and M.E.A.P

Earth Science and M.E.A.P. The benchmarks and you!. EG. Geosphere Benchmark 3. Explain how common objects are made from earth materials and why earth materials are conserved and recycled. Key concepts. Valuable materials : Minerals —diamonds, salt, sulfur, etc.

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Earth Science and M.E.A.P

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  1. Earth Science and M.E.A.P The benchmarks and you!

  2. EG. Geosphere Benchmark 3 Explain how common objects are made from earth materials and why earth materials are conserved and recycled.

  3. Key concepts • Valuable materials: • Minerals—diamonds, salt, sulfur, etc. • Metallic ores--iron, copper, aluminum, etc. • Fuels—coal, natural gas, petroleum

  4. Key Concepts Types of Resources Renewable Nonrenewable http://www.nrcs.usda.gov/

  5. Mining = mineral extraction from rock http://www.fsengineer.com/images/mining.jpg

  6. What is an ore? Metallic Ores are minerals such as copper, iron, aluminum, etc., that can be mined at a profit.

  7. Mining Iron Ore and Copper in Michigan

  8. Iron Ore Mining and Processing Step 2: Haul rock out of pit. Step 1: Drill dynamite hole and blast. Photos courtesy of Lisa Bouda

  9. Step 3: Crush Primary Crusher Secondary Crusher Photos courtesy of Lisa Bouda

  10. Step 4: Separate iron from waste rock. • using magnets for magnetite using flotation tanks for hematite http://www.cleveland-cliffs.com/photos/deslime%20thickeners.jpg http://www.cleveland-cliffs.com/photos/magnetic%20separator.jpg

  11. Step 5: Pelletize Photo courtesy of Lisa Bouda

  12. Key concepts: Mining Refining Manufacturing

  13. Key concepts: Recycling processes melting, shredding, dissolving Conservation Limits Recycling Costs for developing more remote supplies

  14. Real-world contexts: Manufacturing processes—steel mills, auto assembly lines, paper making

  15. Local recycling center for materials, such as glass, plastic, aluminum, steel cans, motor oil

  16. Examples of technical and social means for slowing the depletion of earth’s resources, such as developing more fuel efficient cars and mandating their use

  17. Disposal in landfills and incinerators.

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