Planets, moon cycle, tides and seasons

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Across
  1. 1. mars is the _____ planet from the sun
  2. 3. the ____ 's gravity pulls on the earth and the oceans causing tides
  3. 8. weight is measured in
  4. 9. separates the northern and southern hemisphere
  5. 11. the four larger outer planets are known as ___ giants
  6. 12. in summer the planets tilt makes the suns rays stronger because they are more
  7. 13. there are _____ moon phases
  8. 15. does not change if you travel to space or another planet
  9. 17. after the waning gibbous comes the ____ quarter
Down
  1. 1. The brightest moon phase is
  2. 2. the second planet from the sun
  3. 4. when we cannot see the moon it is a ___ moon
  4. 5. to spin or turn
  5. 6. your ______ is much less if you are on the moon than on earth
  6. 7. the longest or shortest daylight hours
  7. 10. the earth takes 365 days to _______ around the sun
  8. 14. the attractive force between two objects
  9. 16. when the moon and sun line up a ____ spring tide is formed