Across
- 5. a wave where particles vibrate to the direction of the wave traveling.
- 7. a wave that moves particles perpendicular
Down
- 1. a scientist that studies earthquakes
- 2. Instrument used to determine the earthquakes strength and size
- 3. a wave that causes particles to move back and fourth
- 4. waves vibrations that ravel through earth during an earthquake
- 6. a wave that travels through earth by shaking
- 8. a sudden shaking on the ground caused by Earth's crust