i don't care what the title is

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Across
  1. 2. i need if i am hungry
  2. 7. kids think it is jail
  3. 9. some people live in
  4. 12. kids love to go on these
  5. 15. now extinct but are really strong
  6. 16. normally found in fast food establishments
  7. 17. he is on the floor on top of me
  8. 19. Likes to chase mice
  9. 21. Has a trunk
Down
  1. 1. a movie snack
  2. 3. tells you the meaning of a word
  3. 4. Large marsupial
  4. 5. octopus's use these
  5. 6. normal children want these
  6. 8. scientist's work in these
  7. 10. people go crazy without it
  8. 11. Man's best friend
  9. 13. dog and cat
  10. 14. large water animal
  11. 18. Flying mammal
  12. 20. a life essential