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11 Cards in this Set
- Front
- Back
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Temperature
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A measurement of how hot or cold something is. It is a measure of how fast the particles in a material are moving.
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Sublimation
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Occurs when a substance changes directly from a solid to a gas without going through a liquid state.
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Plasma
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Rare on earth, because it requires such a high temperature. State of matter with so much energy that some or even all of the electrons have separated from the nuclei.
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Melting point
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The temperature at which the solid melts to become a liquid.
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Freezing point
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The temperature at which a liquid freezes . An substances melting point is the same as its freezing point.
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Boiling point
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The temperature at which a liquid becomes a gas. Occurs when a liquid reaches a temperature at which bubbles of gas forms rapidly throughout the liquid.
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Vaporization
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The process by which a liquid changes to a gas. Reaching the boiling point of a liquid causes vaporization to occur.
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Pressure
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The force exerted by the gas. Increasing pressure on a gas decreases the volume.
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Temperature and Volume
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Gases contract when they cool.they also expand when they heat.
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Physical Change
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Altering the size, shape, or state without forming a new subject.
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Dissolve
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The process that occurs when the molecules of a solid move apart and are separated by the molecules of a liquid. Heat usually speeds up the process.
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