Thermal Energy and States of Matter

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Thermal Energy

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Energy in the form of heat

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Temperature

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A measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees

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Heat

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The transfer of thermal energy

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Heat Transfer

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The movement of heat across the border of the system due to a difference in temperature between the system and its surroundings

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Kinetic Energy

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The energy an object has because of its motion

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Solid

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Matter with a fixed volume and shape

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Liquid

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State of matter with a defined volume but no defined shape

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Gas

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State of matter without any defined volume or shape

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Boiling Point

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The temperature at which a liquid changes into a gas

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Melting Point

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The temperature at which a solid turns into a liquid