Across
- 4. A solid formed during a chemical change
- 7. The substances formed in chemical reactions
- 9. The change of state when a solid is heated and forms a liquid
- 11. A gradual erosion of rocks and buildings that occurs when limestone and marble react chemically with the carbonic acid in rainwater
- 12. The change of state from liquid to solid
- 14. A change that results in a new substance being formed
- 15. A simple chemical equation where chemicals are represented by their names
- 17. A change of state from solid to gas
- 18. A decrease in size
- 20. The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun
- 21. The starting substances in chemical reactions
Down
- 1. A change of state from gas to solid
- 2. A change of state where a gas is cooled and forms a liquid
- 3. Evaporation of solvent from a solution to leave solute behind as crystals
- 5. An increase in size
- 6. A change that does not result in a new substance being produced
- 8. The process of rearranging atoms in substances to form different substances
- 10. A change of state where a liquid changes to a gas at the surface of the liquid
- 13. Any chemical reaction where a substance burns in oxygen to produce light and heat
- 16. A change of state where a liquid is heated and changes to a gas within the liquid
- 19. A chemcial reaction that converts oxygen and glucose into water and carbon dioxide while releasing energy.