Science

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Across
  1. 4. caterpillar stage of a butterfly
  2. 6. how fast an object moves at a certain distance
  3. 7. attracts or repels certain objects
  4. 10. Without backbone with legs and wings
  5. 11. has feathers and lay eggs
  6. 12. push or pull
Down
  1. 1. life for trees and wild animals
  2. 2. a measure of how much matter is in an object
  3. 3. make their own food
  4. 5. a pulling force between two objects
  5. 7. A change in position of an object
  6. 8. how high or low sound is
  7. 9. lives both in land and water