Across
- 5. Which famous ship sank in 1912 after hitting an iceberg?
- 6. What do fish use to breathe underwater?
- 7. What is the largest animal in the sea?
- 9. Which ocean is the largest on Earth?
- 10. Are dolphins mammals or fish?
- 12. How many arms does a typical starfish have?
Down
- 1. What is the deepest known point in the ocean?
- 2. Which sea animal is considered the fastest swimmer?
- 3. What is the term for the measure of how salty sea water is?
- 4. What mythical creature is said to lure sailors with its voice?
- 8. What mainly causes waves in the sea?
- 11. What instrument did sailors historically use to navigate using the stars?