Across
- 2. The bottom part of the ocean floor.
- 5. The moving and splashing of water in the ocean.
- 8. Animals and plants that live in the ocean.
- 9. A hard covering from the ocean that protects some animals.
- 10. Being or happening below the surface of the water.
- 11. Studying the ocean, its animals, and how it works.
- 12. The ocean's surface going up and down because of the moon's pull.
- 13. Going under the water to explore or swim.
Down
- 1. A special boat that can go underwater.
- 3. Swimming and exploring underwater with special equipment.
- 4. A colorful underwater world made of living things called coral.
- 6. Going to new places to discover and learn about them.
- 7. Animals that live in water and use gills to breathe.
- 9. Plants that grow in the ocean and can be green or brown.
- 11. A big body of water that covers most of the Earth's surface.