Correct: Particles in a solid vibrate, Particles in a liquid move slowly, Particles in a gas move quickly, Melting is solid to liquid, Evaporating is liquid to gas, Freezing is liquid to solid, Condensing is gas to liquid, At a state change the temperature stays the same, We can use a Eureka can to measure density, Density = mass / volme, Incorrect: Melting is gas to liquid, Solid particles are free to move, Freezing is solid to liquid, Condensing is gas to solid, Particles in a gas are only vibrating, At a state change, the temperature changes, No energy is needed at a state change, Density is volume / mass, We can use a happydays can to measure density,

Particle Science AQA P6

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