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| The smallest particle of a substance that can exist by itself or be combined with other atoms to form a molecule. |
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| A substance with a set volume and a rigid shape; it can't flow and is hard to compress. |
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| A substance with a set volume which takes the shape of its container; Can flow. |
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| A substance that fills and takes the shape of any container. It flows and is easy to compress. |
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| A measurement of the amount of suspended solids in a liquid, calculated using special meters. |
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| A substance that dissolves a solute to form a solution. |
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| A homogeneous mixture made from a solvent and one or more solutes; in a solution only one substance is visible; a solution can be solid, liquid, or gaseous. |
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| A substance that is dissolved in a solvent to form a solution. |
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| The maximum amount of a particular solute that can be dissolved at a given temperature. |
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| A solution that contains the maximum amount of solute that the solvent can dissolve at a given temperature. |
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| A solution in which more solute can be dissolved at the given temperature. |
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| Unprocessed material of any kind. |
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| Any solid, liquid, or gas that contains only one kind of particle throughout. |
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| An increase in the volume of an object or substance. |
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| The transfer of heat by the movement of particles from one part of a fluid to another. |
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| A decrease in the volume of an object or substance. |
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| The transfer of heat by the collisions of particles in a solid. |
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| A heterogeneous mixture; at least two substances are visible. |
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| Anything that takes up space and has mass. |
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| A mixture that is the same throughout; all samples will have the same properties. |
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| An uneven mixture that contains two or more substances; samples may have different properties. |
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| Energy that is transferred from hotter to colder substances. |
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| A device that uses the expansion and contraction of solids to measure temperature. |
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| A device that uses the expansion and contraction of liquids to measure temperature. |
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| A device that uses electricity to measure temperature. |
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| A measure of the average energy of motion of the particles in a substance. |
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| A measure of the amount of heat needed to raise the temperature of a substance or a measure of how much heat the substance releases as it cools. |
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| The temperature at which a substance goes from solid to liquid. |
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| The point of heat at which a liquid turns into a gas. |
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| A theory used to explain matter and heat transfer. It suggests all matter is made of tiny particles too small to be seen. The particles are always in motion because they have energy. The more energy, the faster. |
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