Across
- 3. Concave lens
- 5. To bounce light off
- 7. To let light pass through
- 13. Electromagnetic spectrum
- 14. Science of light, lenses and mirrors
- 15. Clear like glass
- 16. Curved inwards
- 17. Lowest frequency light
Down
- 1. Convex lens
- 2. Highest frequency light
- 4. EM radiation higher than visible light
- 6. To bring light together
- 8. EM radiation lower frequency that red light
- 9. Spread light out
- 10. Particle of light
- 11. To Bend Light
- 12. Curved outward