Be curious 5 unit 2 vocabulary

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Across
  1. 3. an animal that went extinct 65 million years ago
  2. 4. similar to a turtle but lives on the land
  3. 8. a small insect, usually black or brown
  4. 9. everything on the floor but not the sea
  5. 10. when there aren't many of this species left in the world
  6. 13. a dark place inside a mountain or rock
  7. 15. a hot dry environment
  8. 17. a sea creature with eight legs
  9. 18. similar to a duck with a long neck
  10. 19. everything around us!
Down
  1. 1. a very very hot and dangerous thing
  2. 2. an insect with beautiful wings
  3. 5. a large sea
  4. 6. like a river but smaller
  5. 7. an animal that lives in the desert
  6. 10. a big bird of prey, they are an endangered species
  7. 11. when a species of animal doesn't exist anymore
  8. 12. like a forest but smaller
  9. 13. another word for an animal
  10. 14. like mountains but smaller
  11. 16. a small rock