Science Extra Crossword

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Across
  1. 1. The meat that comes from a pig.
  2. 4. Kids love to eat this.
  3. 6. The part of a plant that is under the ground.
  4. 8. We need this to see.
  5. 12. What water does when it turns to vapor.
  6. 13. This has two wheels.
  7. 14. The bone that protects tour brain.
  8. 17. This happens when water gets below zero degrees C.
Down
  1. 1. A bird that can't fly and lives in cold places.
  2. 2. A popular card game.
  3. 3. You get this from meat, eggs and nuts.
  4. 5. Bees collect this from flowers.
  5. 7. This is in candy and soda.
  6. 9. These are at the end of your legs.
  7. 10. Water does this when it gets very hot
  8. 11. A bird makes this to sleep in.
  9. 15. These are green and grow on trees and plants.
  10. 16. This has four wheels.