Gravity Crossword Puzzle

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Across
  1. 1. The celestial object that orbits the Earth.
  2. 2. A giant dust cloud that created the Sun.
  3. 7. Our Solar system is held by the ___'s gravity.
  4. 8. The force that pulls objects toward each other
  5. 9. The planet we live on.
Down
  1. 1. Is measured by how much matter an object has
  2. 3. There are _____ planets in our solar system
  3. 4. measure of a gravitational pull on an object.
  4. 5. To do nothing or to remain unchanged.
  5. 6. The Earth was formed, built by __ and gravity.
  6. 9. Light and Heat are both types of _____.