Across
- 2. Colorful, underwater structures made by tiny sea animals.
- 5. Birds commonly found near the ocean, often near the beach.
- 6. Hard protective outer coverings found on the beach.
- 8. The rising and falling of ocean water caused by the moon's gravity.
- 10. A special vessel that travels underwater to explore the ocean.
Down
- 1. Moving ripples on the ocean's surface caused by wind.
- 3. Sandy or rocky shore where the ocean meets the land.
- 4. Aquatic creatures that live and swim in the ocean.
- 7. A boat with sails that uses wind to move across the water.
- 9. Vast bodies of saltwater covering much of Earth's surface.