Across
- 3. picture
- 5. look at stars with this
- 7. habitat
- 8. weather instrument
- 11. used in submarine
- 12. old form of communication
- 13. twisty apparatus
- 15. distance around
- 16. to move
- 17. used to call someone
- 19. studies life
Down
- 1. to speak into
- 2. to listen with
- 4. study of sounds
- 5. way to send message
- 6. small measurement
- 9. measurement
- 10. true story
- 14. life
- 18. width