The water cycle SMS hunter

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Across
  1. 2. fill with rain and cover up the sun sometimes
  2. 3. the scientific formula for water
  3. 4. provides heat to start the water cycle
  4. 6. is a force that pulls stuff the the ground
  5. 7. has a whole ecosystem in it and it is REALLY big
Down
  1. 1. the rain that Mother Nature covers the landscape with runs off downhill due to gravity
  2. 2. when water vapor turns back into tiny water droplets
  3. 5. is a low area on the ground where water collects and pools