Across
- 2. A fiery star that is in our solar system
- 4. Scientific that discovered the gravity
- 6. How much space and object takes up
- 8. a regular, repeating path that one object in space takes around another one.
- 9. measure of the gravitational pull on that object
Down
- 1. the largest planet in our solar system
- 3. a system of a Sun and the objects that move around it
- 5. rocky planet we live on
- 7. rocky satellite of the earth
- 10. force that pulls objects toward each other