Across
- 5. What do some ocean animals rely on to communicate?
- 6. Sound waves travel fastest through ___________.
- 7. Vocal cords act like a _______________.
- 9. The ______ is the lowest point of the wave.
- 10. What is it called when a wave loses energy?
- 12. Sound waves travel slowest through ________.
- 13. What do surfers look for when they are surfing?
Down
- 1. Ocean waves can travel 9,000 __________.
- 2. What are ocean waves caused by?
- 3. What animal uses echolocation? (refer to the one in the paper)
- 4. Which scientist ran experiments on ocean waves?
- 7. There is no sound in space because there is no ___________.
- 8. What creates waves?
- 11. Energy moves through particles as a ________.