Across
- 7. changes into some other kind of energy
- 9. when light bends in a new direction
- 11. light bends because it changes _____
- 12. when all the colours are reflected
- 13. the speed of light in air (km)
- 14. the form of energy we can
- 17. the process in which the sun forms light
Down
- 1. light travels in a _______ line
- 2. why fireflies and some fish glow
- 3. a lens curving inwards
- 4. can also affect refraction
- 5. a lens curving outwards
- 6. the likeness of an object
- 8. a mirror having a flat surface
- 10. refracted light is responsible for creating _______
- 15. example of a chemiluminescent source
- 16. most abundant and least expensive light
- 18. you see this when you look in a mirror