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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 |