Wave puzzle

4. A wave behavior that is the bending of waves due to a change in speed as the wave moves from one medium to another.
7. The range of electromagnetic waves that can be detected by the human eye including colors.
11. The entire range of light that are part of electromagnetic waves arranged in order of their frequencies or wavelengths.
17. A wave behavior that means to take in so that the wave energy is not transferred through the medium.
18. The range of electromagnetic waves in the frequency region just below red on the visible light spectrum; when absorbed objects become warmer.

1. A wave behavior that is the bouncing back of waves upon reaching another surface or boundary that does not absorb the wave's energy.
2. Different frequencies of light that are part of the visible light spectrum; the color perceived by the observer is the frequency reflected by a material, other frequencies were absorbed by the material.
3. A material that transmits some light but causes it to be scattered so no clear image is seen
5. Human perception of the frequency of sound.
6. A material with many slits or tiny ridges that refracts light at different angles into its various frequencies/ colors.
8. A wave behavior that is the process of allowing the wave to pass through a given point or medium.
9. The range of electromagnetic waves in the frequency region just above violet on the visible spectrum.
10. A material that does not allow light waves to be transmitted through them.
12. A lens whose middle part is thicker than its edges so that it bends/refracts light rays together.
13. A mirror with a smooth, flat surface that reflects light.
14. A material through which light is transmitted/ passes through easily.
15. A triangular-shaped piece of glass that refracts/separates light into its various frequencies / colors.
16. Less dense region of a compressional wave where the medium is moving apart.