Across
- 3. Lightest state of matter
- 5. Moisture ex) H2O
- 9. Smell
- 11. Type of reaction releasing heat
- 12. the starting materials in a reaction
- 14. emission of light by a substance not due to heating
- 15. pocket of gas in a solid/liquid
- 16. Cannot be reversed
- 17. which one substance or molecule is reduced and another oxidised
Down
- 1. a substance that is present at the end of a chemical reaction
- 2. Increase in temperature
- 4. Decrease in temperature
- 6. Can be reversed
- 7. Degree/Intensity of heat
- 8. Shade
- 10. Forms in which matter can exist
- 13. Type of reaction absorbing heat