Astronomy

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Across
  1. 3. object in motion will stay in motion until acted upon by another force
  2. 5. to spin
  3. 6. earth rotates around it
  4. 7. caused by gravity of moon and sun
Down
  1. 1. equal day a night
  2. 2. A force that pulls two objects together
  3. 4. tide sun,moon and earth are in a right angle
  4. 5. object moves around another object