Across
- 3. mineral used to make jewellery
- 4. chemical which produces light in animals
- 5. a glass which splits sunlight
- 7. building blocks of rocks
- 9. light travels in waves of different shapes
- 10. soil with high organic content
- 12. light display in the sky
- 14. splitting up of white light
- 16. pigment in flowers
Down
- 1. colour scheme using variations of colours
- 2. colours made by mixing primary and secondary colours
- 6. heavenly bodies are hidden
- 8. bioluminescent fish
- 11. building blocks of colours
- 13. bending of light
- 15. cool colour