Across
- 2. a pair of earphones joined by a band over head
- 4. a straight line passing side to side.
- 6. a scientist who conducts research in biology
- 8. science instrument that is used to measure air pressure
- 11. the continuous line forming
- 12. a system for transmitting messages
- 16. a device consisting a wheel or disk mounted so it can spin
- 17. a method of teaching people to read
- 18. a toy consisting tube containing mirrors
- 19. a picture made using a camera
- 20. a large naturally occurring community of flora
- 21. capable of decaying naturally and without harming the enviornment
- 23. an account of someone's life written by someone else
Down
- 1. transport or be transported across space or distance
- 3. an apparatus consisting of a tube attached to mirrors
- 5. an instrument for converting sound waves
- 7. a metric unit of length
- 9. a metric unit of length to 1,000 meters
- 10. an optical instrument designed to make distant objects nearer
- 13. a harsh discordant mixture of sounds
- 14. a pictorial symbol for a word or phrase
- 15. make sure to pick up your ______
- 22. the science of life or study of life