Ch. 19 Vocab.
Across
- 3. devise that produces a powerful beam of light
- 9. transparent material that bends light
- 12. occurs when light is repeatedly reflected within a given material
- 14. can be projected onto a screen
- 17. material that blocks light
- 21. reflection that forms a clean image
- 23. triangular piece of transparent glass that separates white light into a band of colors
- 25. separation of white light into its component colors
- 26. use of optical fibers
- 28. seven colors that make up white light
- 29. range of electromagnetic waves
- 30. straight line that shows the direction of light
Down
- 1. curves outward
- 2. green plant cells
- 4. image cannot be project onto a screen
- 5. substance in plants that absorbs the Sun's light and gives plant their green color
- 6. picture formed by the eye
- 7. from of electromagnetic energy made up of streams of photons
- 8. process by which plants use energy from the Sun to make food
- 10. curves inward
- 11. material that transmits some light
- 13. organ that detects light
- 15. one of sense
- 16. object that reflects light
- 18. object that gives off its own light
- 19. wave where particles of the medium moves up and down at right angles
- 20. reflection that forms a fuzzy image
- 22. material that transmits light easily
- 24. tiny bundle of energy
- 27. smooth surface that reflects light and forms images