Solid - Particles are tightly packed. Most of these objects can be melted to form liquids., Liquid - Particles a slightly spread out. Objects with these particles fill the bottom of whichever space they are put into., Gases - Particles are very widely spaced. We breathe these in and out., Condensation - Cooling a gas to form a liquid., Evaporation - Heating a liquid to form a gas., Freezing - Cooling a liquid to form a solid., Melting - Heating a solid to form a liquid.,

Changes in state

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