Across
- 2. Clear layer that protects the eye
- 5. _________ sighted means the image forms in front of the retina
- 6. Front of the eye that lets light in
- 7. High ________ means a high pitched sound
- 8. A sound wave is this type
- 10. What causes sound
- 13. Different coloured light has different ___________
- 16. The type of lens that forms a real image
- 18. What is needed for sound to travel
- 19. Back of the eye where the image forms
- 20. The type of mirror that focuses light
Down
- 1. Means to bring the light rays together
- 3. Light bouncing off an object
- 4. The height of a wave from the neutral line
- 9. A light wave is this type
- 11. Light bending when going through an object
- 12. Means to spread out the light rays
- 14. Cannot travel through space
- 15. The angle of __________ = the angle of reflection
- 17. Part of the ear that magnifies sound