Across
- 1. Reaction where a compound breaks into simpler substances
- 3. A mirror that converges parallel rays to a point
- 9. Protein catalyst that speeds up biochemical reactions
- 10. A transparent object that disperses light
- 11. Digestive juice secreted by the liver
- 12. Representation of a chemical reaction using symbols
- 14. Tiny sacs in lungs for gas exchange
- 15. A piece of glass that refracts light rays
Down
- 2. Reaction involving gain of oxygen or loss of hydrogen
- 4. Reaction that absorbs heat from surroundings
- 5. Band of colors obtained after dispersion of light
- 6. Plant tissue that transports water and minerals
- 7. Tube that carries urine from kidney to bladder
- 8. Related to vision and light phenomena
- 13. A chemical equation with equal atoms on both sides