Vocabulary Choice Board

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Across
  1. 3. made up of the parts of Earth where life exists.
  2. 5. a layer of Earth's atmosphere
  3. 7. the solid, outer part of Earth.
  4. 9. energy that comes from a source and travels through space at the speed of light
Down
  1. 1. any liquid or frozen water that forms in the atmosphere and falls back to the earth
  2. 2. the depth in the earth where heat from the core begins to melt the crust
  3. 4. water containing less than 1,000 milligrams per liter of dissolved solids, most often salt
  4. 6. a scientific theory that explains how major landforms are created as a result of Earth's subterranean movements
  5. 8. the dissolved salt content of a body of water
  6. 10. forms a protective barrier that prevents ultraviolet sunlight (UV-B) radiation from the sun from reaching the Earth's surface and harming plant and animal life