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Phys & Chem Change
Physical and Chemical Changes
| Question | Answer |
|---|---|
| the molecules do not change | physical change |
| the molecules change into something new | chemical change |
| solid to gas | sublimation |
| gas to solid | deposition |
| solid to liquid | melting |
| liquid to solid | freezing |
| liquid to gas | evaporation |
| gas to liquid | condensation |
| evidence for a chemical change | new colour, new odour, bubbles, energy, a solid forms |
| breaking glass | physical change |
| baking cookies | chemical change |
| burning leaves | chemical change |
| water freezing | physical change |
| paint drying | chemical change |
| bending a paper clip | physical change |
| dynamite exploding | chemical change |