Across
- 3. to be guarded by something
- 5. a person who studies science
- 7. a living breathing organism
- 9. another name for building
- 10. what do scientist study
Down
- 1. another word for plants
- 2. to almost be extinct
- 4. another word for tools
- 6. people use north south east west
- 8. meteorologists study this