Astronomy Earth Project

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Across
  1. 6. Closest part of the atmosphere that helps create wind and clouds
  2. 7. Two or more tectonic plates moving toward each other
  3. 8. 50 km above ground, the cool part of the atmosphere with no clouds
  4. 9. Layer of Earth between the crust and core
Down
  1. 1. Two or more tectonic plates move away from each other
  2. 2. sorting major components of a planet by density
  3. 3. The layer that protects Earth from radioactive waves from the sun
  4. 4. The hot, dense center of our planet
  5. 5. The man who proposed the idea of continental drifts
  6. 7. Outermost layer of the Earth