Oceans and Sea Life

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Across
  1. 1. A deep, narrow valley in the ocean
  2. 8. A stinging creature with long tentacles
  3. 9. The very bottom of the ocean
  4. 10. Green plant that grows in the ocean
  5. 11. It has a pouch and the male carries the babies
  6. 14. Endangered aquatic mammals with two front flippers and broad, spoon shaped tails
  7. 15. What causes tides
  8. 18. A house for a crab
Down
  1. 2. Unicorn of the sea
  2. 3. The rise and fall of the sea
  3. 4. Large marine mammal
  4. 5. Sandy area where the land meets the ocean
  5. 6. Fish use these to breathe
  6. 7. This creature has a shell and moves slowly
  7. 12. Home of marine plants and animals
  8. 13. Fish that may produce electric shocks
  9. 16. It has eight arms and is very smart
  10. 17. A mountain top that sticks out of the water