Six weeks vocabulary

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Across
  1. 2. the phase two weeks after the new moon
  2. 4. the l on the weather map
  3. 6. move away from each other
  4. 9. the star around which the earth orbits
  5. 10. slide past each other
  6. 11. distance between corresponding points of two consecutive waves
Down
  1. 1. fronts that brings cold air
  2. 3. move toward each other
  3. 5. water that is stored underground
  4. 7. front that brings warm air
  5. 8. the only wave people can see
  6. 12. the H on the weather map