Across
- 7. how we describe an object that light cannot pass through
- 8. energy produced by the joining of nuclei in an atom TWO WORDS
- 10. an area of blocked light
- 11. a popular type of light made from a semiconductor THREE WORDS
- 13. energy that travels through space and reaches us as heat, light and radiation TWO WORDS
- 14. the colors we can see TWO WORDS
Down
- 1. the type of light that has shorter wavelengths that we can't see with our naked eye
- 2. a property of light that causes it to bounce off things
- 3. how we describe a material that allows nearly all the light to pass through
- 4. energy that travels in all directions. TWO WORDS
- 5. the colors we can't see TWO WORDS
- 6. light created with a flowing filament TWO WORDS
- 9. how we describe a material that scatters light, making it difficult to see clearly through it
- 12. the bending of light
- 15. light that has longer wavelengths and generates heat