Across
- 5. The path a planet or star takes around something.
- 7. The tendency of an object to resist changes in direction.
- 9. The force keeps you from floating into space.
- 10. The energy that we can hear.
- 11. A ball at the top of the hill.
- 12. Lets almost no light through.
- 13. Lets A little bit of light through.
Down
- 1. An object in motion.
- 2. energy Energy that we can see coming from other objects.
- 3. The ability to do work.
- 4. A push or pull motion
- 6. Lets almost all light through.
- 8. The rubbing of two objects together.