Across
- 3. How light is measured
- 6. Cell death at high doses
- 7. Has the highest frequency
- 9. Damage to eyes
- 10. Used for cooking
- 12. Can cause skin cancer
Down
- 1. Contains all known forms of light
- 2. Has no dangers
- 4. The only light humans can see
- 5. Measures how many waves pass by a point in one second
- 8. Rays Sterilize medical equipment
- 11. Has the longest wavelength