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States of Matter

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Answer
The temperature at which a substance changes from a liquid to a gas; the same as the condensation point, or temperature at which a gas changes to a liquid.   Boiling point  
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The temperature at which a substance changes from a solid to a liquid; the same as the freezing point, or temperature at which a liquid changes to a solid.   Melting point  
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A solid made up of particles that are not arranged in a regular pattern.   Amorphous solids  
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A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern.   Crystalline solids  
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Energy from the sun.   Radiant Energy  
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The lowest possible temperature at which thermal energy is as close to zero as it can be, approximately -273 degrees Celsius.   Absolute zero  
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The force of pushing on a surface divided by the area of that surface.   Pressure  
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A solid, liquid, and gas.   States of matter  
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A state of matter that has a definite shape and a definite volume.   Solid  
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A state of matter that has no definite shape but has a definite volume.   Liquid  
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A state of matter with no definite shape or volume.   Gas  
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The change of state from a gas to a liquid.   Condensation  
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The change of state from a liquid to a gas.   Vaporization  
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Any substance that can flow.   Fluid  
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The change in state from a solid to a liquid.   Melting  
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The change in state from a liquid to a solid.   Freezing  
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The direct transfer of heat from one substance to another.   Conduction  
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The transfer of heat by the motion of matter, such as by moving air or water.   Convection  
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The process that occurs when vaporization takes place inside a liquid as well as on the surface.   Boiling  
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The process that occurs when vaporization takes place only on the surface of a liquid.   Evaporation  
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The results of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin.   Surface tension  
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The change in state from a solid directly to a gas without passing through the liquid state.   Sublimation  
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A measure of the average energy of motion of the particles of a substance.   Temperature  
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