Across
- 3. energy that we can see
- 5. thicker in the middle than at the edges
- 6. light moves through an object and bends
- 7. can see through an object but not clearly
- 9. thinner in the middle than at the edges
- 11. a clear object that reflects light as the light moves through
- 12. shows the colors of white light
- 13. when light bounces off a medium
Down
- 1. the bending and spreading of waves as they move around a barrier or through an opening
- 2. parts of light that are reflected from an object
- 3. a piece of glass or other clear material with curved sides
- 4. can see through an object clearly
- 8. range of colors in light
- 10. cannot see through an object at all