Across
- 3. - made up of skeletons of small sea creatures called coral.
- 4. - The top layer of water.
- 7. – The place an animal or plant lives.
- 9. - The middle layer of water.
- 11. - animals that hunt and eat smaller animals for food
Down
- 1. - animals that eat leftover bits of plants and animals
- 2. - how deep something is.
- 5. - The bottom layer of water.
- 6. - of the sea
- 8. - tiny sea plants and animals; very bottom of the food chain.
- 10. - animal hunted and eaten by another animal