Gravity

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Across
  1. 2. Our planet.
  2. 4. amount of matter in an object
  3. 6. pulls objects.
  4. 8. has three laws
  5. 9. measured in lbs
  6. 10. Middle of solar system
Down
  1. 1. Has 8 planets.
  2. 3. A scientist
  3. 5. Going around something
  4. 7. Revolves around the Earth.