Across
- 3. Letting some light pass through
- 6. A man made source of light (3 Words)
- 8. Reflects light from the sun to illuminate the night
- 10. Allowing light to pass through
- 12. Does not give off light
- 13. Can be changed into electrical energy for homes, farms and recreational vehicles (2 Words)
- 17. The angle between the incidence ray and the normal line(3 words)
- 20. Allowing no light to pass through
- 21. To send out energy in the form of waves or rays
Down
- 1. What you see when you look in a mirror or on a screen (2 Words)
- 2. A chemical reaction that produces light
- 4. The most abundant and least expensive light in the world (3 Words)
- 5. The type of light produced by a living creature
- 7. The angle between the normal line and the reflected ray (3 Words)
- 9. The emission of visible light from a hot object
- 11. Energy transferred or emitted as waves or rays (Radiant Energy)
- 14. The form of energy that you can see
- 15. The transfer of radiant energy such as light
- 16. a mirror with a flat surface (2 Words)
- 18. Giving off its own light
- 19. The likeness of an object