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The temperature at which a liquid boils. Example: Water boils at 100 degrees Celsius. |
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| The process by which a gas changes back into a liquid, due to cooling. |
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| The process by which a liquid becomes a gas, due to an addition of heat. |
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The temperature at which a liquid freezes. Example: Water freezes at 0 degrees Celsius. |
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A state of matter in which the molecules are very spread apart. A gas has neither a definite shape or volume. Example: Water Vapor, Carbon Dioxide (CO2), or Oxygen (O2). |
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The state of matter in which the molecules are somewhat close together. It has a definite volume but no definite shape. Example: water, milk, gasoline. |
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The amount of matter in an object. Mass is NOT dependent on the force of gravity, therefore it is NOT the same as weight. |
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| Anything that has mass and takes up space. |
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The temperature at which a solid changes into a liquid. Example: Ice melts at 0 degrees Celsius. |
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| The smallest particle of a substance that retains all the properties of the substance. |
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A quality or trait belonging to an individual or thing. Can be used to identify substances. |
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A state of matter in which the molecules are tightly packed together. A solid has a definite shape and volume. Example: Ice, Wood |
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