Across
- 3. When you look in the mirror you see your…
- 4. describes how high or low a sound is
- 8. the height of the wave
- 9. … happens when light changes direction
- 11. charge flow from one place to another in circuit
- 13. refract light inward toward a focal point
Down
- 1. magnetism developed by a current
- 2. Range of colours
- 5. vibrations on a string and ripples on the surface of water
- 6. the distance between wave peaks
- 7. You need… to see in the dark
- 10. the number of times a value occurs in a set of data
- 12. curves inward