Across
- 2. absorbs all colors of light
- 5. objects that let no light through
- 6. light sent in all directions
- 10. primary color starting with r
- 12. what colors will purple absorb
- 15. light being sent back
- 17. a combination of all the colors
- 18. shorter waves have higher frequency
- 20. objects that let some light through
Down
- 1. primary color starting with b
- 3. a description of how low or high something is
- 4. vibrations that travel through air
- 7. objects that let all light through
- 8. sound waves reflecting off of a surface
- 9. primary color starting with y
- 11. what a wave travels through
- 13. repeated up and down motion
- 14. longer waves have a_ frequency
- 16. makes things visible
- 19. the degree or intensity of a wave