Matter, •is any substance that has mass and takes up space •is any substance that has mass and takes up space •is any substance that has mass and takes up space is any substance that takes up space, Diffusion, the spreading of one substance through another, Particles, are tiny building blocks that make up everything in the universe, Mass, the amount of substance in an object that never changes, even in space, State, a distinct form of matter, Solid, a substance that has a fixed shape and constant volume, Liquid, a substance that flows freely and takes the shape of its container but has constant volume, Gas, a substance that expands freely to fill the space, Particle model, the behaviour of particles depending on the state of the object, Expansion, the process of substances getting larger - particles move further apart, Contraction, the process of substances getting smaller - the particles move closer together as they cool, Compress, squeeze to make smaller, Melting, when heat causes a solid to become a liquid, Evaporation, when heat causes liquid to become a gas, Sublimation, where heat causes a solid to become a gas without passing through a liquid state, Freezing, where heat is lost and a liquid becomes a solid, Condensation, where heat is lost and a gas becomes a liquid, Deposition, where a reduction in heat causes a gas to become a solid, without passing through the liquid state

Chemistry

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