Earth, moon and sun

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Across
  1. 1. eclipse- when the Earth blocks the sunlight from the moon
  2. 3. the force of gravity on an object
  3. 4. the amount of matter in an object
  4. 6. attracts all objects toward each other
  5. 8. when something in space blocks the sun from the third object causing a shadow.
  6. 9. the different shapes of the moon you see from the Earth
  7. 10. Eclipse- when a new moon blocks your view of the sun
  8. 11. the rise and fall of ocean water
  9. 12. that an object will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by force
  10. 16. The study of the moon, stars, and other objects in space
  11. 17. the tendency of an object to resist a change in motion
  12. 18. The imaginary line that passes through the Earth's center and poles.
  13. 19. the day when the sun is closest or farthest to the Earth
Down
  1. 1. states that every object in the universe attracts every other object
  2. 2. the very darkest of the moon’s shadow
  3. 5. a push or pull
  4. 7. the movement of one object around another
  5. 13. "equal nights"
  6. 14. Earth circles the sun in a
  7. 15. the spinning of earth on its axis