E&S-U2-C4-Ch. 7-Vocabulary Crossword

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Across
  1. 3. a deposit that contains a valuable mineral that has been concentrated by mechanical action
  2. 5. a mineral deposit within a rock formation
  3. 7. the preservation & wise use of natural resources
  4. 9. a mineral, rock, or organic material that can be used as jewelry or an ornament when it is cut & polished
  5. 10. a natural material whose concentration of economically valuable minerals is high enough for the material to be mined profitably
  6. 11. electrical energy produced by the flow of water
  7. 14. a natural resource that can be replaced at the same rate at which the resource is consumed
  8. 15. a nonrenewable energy resource that formed from the remains of organisms that lived long ago; examples include: oil, coal, & natural gas
Down
  1. 1. the process by which the nucleus of a heavy atom splits into 2 or more fragments; the process releases neutrons & energy
  2. 2. plant material, manure, or any other organic matter that's used as an energy source
  3. 4. the energy produced by heat within Earth
  4. 6. the energy received by Earth from the sun in the form of radiation
  5. 8. a resource that forms at a rate that's much slower than the rate at which it is consumed
  6. 12. the process of recovering valuable or useful materials from waste or scrap; the process of reusing some items
  7. 13. the process by which nuclei of small atoms combine to form new, more massive nuclei; the process releases energy