Across
- 1. travels in a straight line
- 3. the length of waves
- 4. travel in rays
- 5. the colour part of your eye
- 6. curves outward
- 8. the rate that something occurs
- 10. the line that comes out at 90 degrees on a plane mirror
- 11. what you hear
- 13. transparent layer on the eye
- 14. where the image is formed
- 16. the maximum extent
- 18. how you hear
- 19. measurement of energy
Down
- 1. bend the straight line to a angle
- 2. this is the longer word for reflect
- 7. used to power your phone
- 9. curves inward
- 12. measurement starting with d
- 15. transfers energy progressively from point to point
- 17. the black part of your eye