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