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25 Cards in this Set
- Front
- Back
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Matter |
Anything that has mass and takes up space (has volume). |
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Nucleus |
The center of the atom that contains both protons and neutrons. |
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Protons |
The positively charged particles of an atom; found in the nucleus. |
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Neutrons |
The small particle of an atom that carries a neutral charge; found in the nucleus. |
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Electrons |
The negatively charged particles of an atom; found outside the nucleus. |
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Periodic Table |
A chart that contains all the known elements; arranged by the atomic number. |
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Solid |
The state in which matter maintains a fixed volume and shape. |
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Liquid |
The state in which matter maintains a fixed volume but adapts to the shape of its container. |
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Gas |
The state in which matter expands to occupy whatever volume is available. |
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Physical Property |
Characteristic that you can see through direct observation that includes color, texture,density, odor, luster, and state. |
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Chemical Property |
Properties that can only be observed when one substance changes into a different substance. |
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Chemical change |
Results in the formation of one or more new substances; a change that cannot be reversed. |
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Physical Change |
A change from one state to another without a change in chemical position |
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Melting |
Change of state from solid to a liquid with the addition of energy. |
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Evaporation |
The change of a substance from a liquid to a gas. |
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Boiling |
The conversion of liquid to vapor. |
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Freezing |
The conversion of liquid to vapor. |
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Condensation |
The change of state from gas into a liquid. |
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Sublimation |
The process in which a solid changes directly into a gas. |
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Conduction |
the transfer of heat energy between objects that are in contact or touching |
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convection |
the transfer of heat energy by a moving liquid or gas. |
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radiation |
the transfer of heat energy by electromagnetic waves. |
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thermal energy |
the total of all kinetic and potential energy of the atoms in an object |
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temperature |
the measure of thermal energy. |
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Insulator |
A material that does not let thermal energy or electricity pass through easily. |
