Earth Space Science Chapter 7 and Thanksgiving Crossword

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Across
  1. 2. The holiday that on the fourth Thursday in November.
  2. 9. Electrical energy produced by the flow or water.
  3. 10. The energy that is produced by heat within Earth.
  4. 13. A natural resource that can be replaced at the same rate at which it is consumed.
  5. 15. The preservation and wise use of natural resources.
  6. 17. Plant material, manure, or any other organic matter that is used as an energy source.
  7. 18. A nonrenewable energy resource that formed from the remains of organisms that lived long ago.
Down
  1. 1. The energy received by Earth from the sun in the form of radiation.
  2. 3. The process by with nuclei of small atoms combine to form a new, more massive nucleus.
  3. 4. A resource that forms at a rate that is much slower than the rate at which the resource is consumed.
  4. 5. The process of recovering valuable or useful materials from waste or scrap.
  5. 6. The process by which the nucleus of a heavy atom splits into two or more fragments.
  6. 7. Electrical energy produced by the flow or water.
  7. 8. A mineral deposit within a rock formation.
  8. 11. The kind of bird that most people eat on Thanksgiving.
  9. 12. A deposit that contains a valuable mineral that has been concentrated by mechanical action.
  10. 14. A natural material whose concentration of economically valuable minerals is high enough for the material to be mined profitably.
  11. 16. A mineral, rock, or organic material that can be used as jewelry or an ornament when it is cut and polished.