Across
- 2. material that transmit light without it being scattered.
- 4. A wave that does not need a medium to travel.
- 7. fog is an example of this.
- 8. the color a red apple will be under a green filter
- 9. When photons knock electrons loose just using light energy.
- 10. a tiny package of light energy.
- 11. color created with the three primary colors of pigments are mixed in equal amounts
- 12. mechanical wave that has a crest and trough
- 14. two colors that combine to form white light.
- 17. substances used to color objects
- 18. a wall is an example of this type of material
- 19. transparent object you look through to see outside
Down
- 1. primary colors of paint (in alphabetical order)
- 3. Energy transferred by a wave such as a microwave or gamma wave.
- 5. sound waves are carried on this type of mechanical wave.
- 6. opaque materials do this to light (three words)
- 9. light once it passes through a special filter.
- 13. primary colors of light (in alphabetical order)
- 15. three colors that can combine to make any color
- 16. when two primary colors mix in equal amounts.