Across
- 4. A signal that varies continuously
- 6. Gas released during photosynthesis
- 8. Distance between two consecutive crests or troughs
- 10. A wave that can travel through space
- 12. A signal represented by ones and zeros
- 15. Number of waves passing a point each second
- 16. What waves transfer
- 17. Maximum displacement from the rest position
- 18. Green pigment in plants
Down
- 1. The number system used by computers
- 2. Process by which plants make food
- 3. A disturbance that transfers energy from one place to another
- 5. Gas absorbed during photosynthesis
- 7. Electromagnetic waves used for communication
- 9. Bending of light when it enters a different medium
- 11. Material through which a mechanical wave travels
- 13. Bouncing of light from a surface
- 14. Visible electromagnetic radiation