Across
- 4. they push and pull
- 5. the origin of an earthquake
- 6. they slide by each other
- 7. are waves caused by explosions on or rocks
- 8. they move towards each other
Down
- 1. can only move through solid rock
- 2. they move away from each other
- 3. are the fastest waves
- 6. are scientists who studied the waves