Across
- 2. the revolution of planets around the sun caused by gravity
- 8. what newton called the fact that gravity acts on all planets
- 9. the theory about an ancient star blowing up starting the universe
- 10. a rock flying through space increasing speed (sometimes described as a shooting star)
Down
- 1. the force that pulls objects toward each other.
- 3. a famous scientist who first thought about gravity
- 4. the planet we live on
- 5. how much space an object takes up
- 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)
- 7. the measure of gravitational pull on an object