SES6Sci

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Across
  1. 2. the revolution of planets around the sun caused by gravity
  2. 5. a famous scientist who first thought about gravity
  3. 8. what newton called the fact that gravity acts on all planets
Down
  1. 1. the force that pulls objects toward each other.
  2. 3. the theory about an ancient star blowing up starting the universe
  3. 4. the measure of gravitational pull on an object
  4. 6. when lots of space material compressed into the middle of the universe and it’s atoms merged causing an explosion it creates… (it produces heat and light)
  5. 7. how much space an object takes up