Across
- 3. trees, animals, and everything outside.
- 5. having nothing inside.
- 7. power to do things.
- 8. something that happens every day.
- 11. to do math and find an answer.
Down
- 1. going from one place to another.
- 2. a big place where many people live.
- 4. the planet we live on.
- 6. the science of how things move and work.
- 9. how big a place is.
- 10. come to ground.