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| Something that has a definite shape and volume. Particles in a solid are packed very closely together so they can only vibrate. |
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| Solids that are made up of crystals. When a crystalline solid is heated, it melts at a specific temperature. The particles form a regular, repeating pattern. |
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| Solids where the particles are not arranged in a regular pattern. An amorphous solid does not melt at a distinct temperature. Instead, it becomes softer and softer or change into other substances. |
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| Something that has a definite volume but no shape on its own. Particles in a liquid are packed close together, but can collide and move past one another, allowing liquids to flow. |
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| the result of inward pull among the molecules of a liquid that brings the molecules on the surface closer together. |
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| a liquid's resistance to flowing |
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| Something that can change volume easily. The particles move about freely and collide frequently. |
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| the change in state from a solid to a liquid |
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| a characteristic temperature where melting occurs |
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| the change from a liquid to a solid |
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| the change from a liquid to a gas |
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| Vaporization that takes place only on the surface of a liquid |
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| the change from a liquid to a gas |
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| the temperature at which a liquid boils |
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| the change in state from a gas to a liquid; the reverse of vaporization |
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| the change from a solid directly to a gas |
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| The force of its outward push divided by the area of the walls of the container |
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| When the temperature of a gas is increased at constant pressure, its volume increases. When the temperature of a gas is decreased at constant pressure, its volume decreases |
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| when a graph of two variables is a straight line passing through the origin |
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| When the pressure of a gas at constant temperature is increased, the volume decreases. When the pressure decreases, the volume increases. |
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| when the product of two variables is constant |
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| A relationship between temperature and pressure |
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| If the temperature of a gas at constant volume is increased, the pressure of the gas increases. When the temperature decreases, the pressure of the gas decreases. |
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