Across
- 5. Having a conference faraway
- 6. Using a scope to see things close up
- 7. A portable telephone
- 9. Light
- 13. Hearing sound through an earpiece that goes on your head
- 17. Plants using light as a source of energy
Down
- 1. Mail that goes faraway
- 2. Far
- 3. Chemistry action of light
- 4. A TV broadcast
- 5. Communicating from far away
- 8. A device used to make sound louder
- 10. Hearing sound through your ear
- 11. Sound
- 12. Study of sounds used in speaking
- 14. A device for transmitting sound
- 15. Using light to copy paper
- 16. An image of a person or object