Across
- 4. something that makes sense or follows a clear thought process.
- 6. to show that something is true or correct.
- 8. a device used to help people breathe underwater.
- 9. the state of existing or living.
- 10. in this place.
Down
- 1. the study of how living things interact with their environment.
- 2. shown to be true or correct through evidence.
- 3. an old-style airplane with two sets of wings, one above the other.
- 4. a way of thinking that makes sense and follows rules.
- 5. a tank or building where fish and other water animals are kept.
- 7. to listen to or notice sounds.
- 9. in the space separating two things.