Gravity

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Across
  1. 4. this is what the law of gravity is called.
  2. 7. a thing that keeps going in a straight line until it is acted upon by an external force
  3. 8. the gravitational pull on an object
  4. 10. it has a big gravitational pull that holds the planets in orbit around it
Down
  1. 1. who discovered gravity
  2. 2. a planet in orbit of the sun that has a single moon orbiting around it because of its superior gravitational pull.
  3. 3. something that orbits around the Earth rather than the sun because of the Earth's proximity to it.
  4. 5. the path planets take while moving around the Sun as it holds them in the same line because of its gravitational pull.
  5. 6. the force that pulls objects towards each other
  6. 9. how much space an object takes up