Parameter puzzle

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Across
  1. 4. Day is to night as sun is to ____
  2. 5. Holds babies in a pouch
  3. 8. Has a trunk
  4. 11. Main food from Domino's
  5. 12. Teachers teach their ________
Down
  1. 1. One lap around is 400m
  2. 2. Man's best friend
  3. 3. Flying mammal
  4. 4. A father and a ______
  5. 6. This football team keeps losing in the playoffs sadly
  6. 7. Likes to chase mice
  7. 8. The planet we live on
  8. 9. The capital of this state is Austin
  9. 10. One, two, three, four, ____