Chapter 18 and 19 key terms

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Across
  1. 1. solar heating Energy from the sun is gathered by collectors to heat water or a building
  2. 3. Thermal Energy Conversion (OTEC) Renewable energy technology that harnesses the temperature differences between warm surface waters of the ocean and the cold depths to produce electricity
  3. 4. Permanent waste disposal facility where wastes are put in the ground and covered each day with a layer of soil, plastic, or both
  4. 5. Liquid passed through compacted soil waste and landfill
  5. 8. Can be broken down by biological processes
  6. 9. fuel Plant material, manure, and any other organic matter that is used as an energy source
  7. 10. energy Deposits of water heated by energy within the earth - energy from heat in the earths crust
  8. 15. reduction Any change in design, manufacture, purchase, or use of materials or products to preduce their amount or toxicity before they become munincable solid waste
  9. 16. Process of reusing materials or recovering valuable materials from waste or scrap
  10. 18. waste Any discarded solid material
Down
  1. 1. energy Energy sources that are still in development
  2. 2. solid waste waste produced by households and businesses
  3. 6. efficiency percentage of energy put into a system that does useful work
  4. 7. solar heating Uses the suns energy to heat something directly
  5. 11. conservation Saving energy
  6. 12. energy Energy from sources that are constantly being formed
  7. 13. energy Emergy produced from moving water
  8. 14. cell Produces electricity chemically by combining hydrogen fuel and oxygen
  9. 17. Dark brown, crumbly material made of decomposed plant and animal matter that is spread on gardens and fields to enrich soil