Puzzle Time! - Science

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Across
  1. 2. the force which pulls things down to Earth
  2. 5. ____ has the most gravity in the solar system
  3. 6. the best science teacher the world has ever seen!
  4. 9. everything has this
  5. 10. newton's first law of physics
Down
  1. 1. the measure of gravitational force
  2. 3. the planets do this
  3. 4. the amount of space between two or more things
  4. 7. the moon has ____ than Earth.
  5. 8. the measurement of mass