Atmosphere and Water cycle word search

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Across
  1. 1. The layer of the atmosphere where ozone layer present.
  2. 4. The process that scientists use to better understand the world around them.
  3. 6. The layer of the atmosphere where weather occur.
  4. 9. In an experiment the group that is left alone is called
  5. 11. The envelope of gasses that surrounds the earth.
  6. 12. What is the water cycle powered by?
  7. 14. Any liquid or frozen water that forms in the atmosphere and falls back to the earth.
  8. 15. when a liquid turns into a gas.
Down
  1. 2. A body of rock and/or sediment that holds groundwater.
  2. 3. The possible explanation for an observation.
  3. 5. The outermost layer of the atmosphere that blends with outer space.
  4. 7. The layer of the atmosphere that protects the earth.
  5. 8. a measure of how compact the mass in a substance or object is.
  6. 10. One state of matter that water normally exist on earth.
  7. 13. This gas makes up the largest percentage of the atmosphere.