Waves

5. A form of electromagnetic radiation that mainly come from the suns.
7. The detection, localization, identification, and avoidance or capture of targets using echos of emitted sounds.
10. Greater than the speed of sound waves through air.
14. Electromagnetic radiation consists of waves of the electromagnetic field, which carry electromagnetic radiant energy.
15. A waves peak to peak or trough to trough. The distance is the same between peak and peak as to trough to trough.

1. The segment of the electromagnetic spectrum that the human eye can see.
2. A portion of electromagnetic spectrum that extends from the long wave, or red, end of the visible light range to the beginning of the microwave range.
3. A decrease in the density of something.
4. The smallest wavelength and the most energized than any other wave in the electromagnetic spectrum.
6. A pressing or squeezing together.
8. Forms of moving energy made of tiny microscopic particles called photons
9. A logarithmic unit used to measure sound level.
11. A form of electromagnetic radiation similar to visible light.
12. The amount of energy they carry is related to their frequency and their amplitude.
13. The time between two successive waves crests (one wavelength) to pass a certain point.