Across
- 4. [Physicist] Most famous German scientist
- 5. Gravity to the extreme!
- 8. Energy that comes from atoms
- 10. Force that holds the solar system together
Down
- 1. The act of speeding up
- 2. Physics of the really small
- 3. [Physicist] Invented the concept of force
- 6. An object's rate of movement
- 7. Large collection of fusing plasma
- 9. The amount of "stuff" in an object