Across
- 2. Vibrations of any frequency
- 3. The subject
- 6. the rate of changing velocity
- 8. a species that has been wiped out
- 10. speed of motion
- 11. how you measure sound
Down
- 1. Made first law of motion
- 2. we hear ____________
- 4. Water, air, me
- 5. Molecules are made of them
- 6. fish that are ruining the Mississippi
- 7. Theory of inertia
- 9. a group of two or more atoms