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30 Cards in this Set
- Front
- Back
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Element |
basic building block of matter; cannot be broken down to a simpler substances |
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Atom |
The smallest particle of an element that has the chemical properties of that element. These are the building blocks of all matter. |
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Mass |
the amount of matter in a substance. You can measure mass using a balance. This is not to be confused with weight. |
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Density |
A measurement of how solid something is, specifically it is the mass per unit volume of a substance. (D=m/v) |
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Volume |
The amount of space an object takes up. |
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Matter |
anything that has mass and takes up space (has volume)
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Nucleus |
the center of an atom that contains both protons and neutrons
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protons |
the positively charged particles of an atom; found in 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 a n 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 fixed shape |
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liquid |
the state of which matter maintains a fixed volume but adapts in the shape of the container |
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gas |
the state of matter in which matter expands to occupy whatever volume is available
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physical property |
characteristics that you cans through direct observation that includes color, texture, density, odor, luster, and state (solid, liquid or gas) |
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chemical properties |
properties that can only be observed when one substance changes into a different substance |
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phyiscal change |
a change from one state (solid, liquid or gas) to another without a change in chemical composition |
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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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melting |
change of state from a 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 a liquid to a vapor |
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freezing |
the change of state from a liquid to solid |
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condensation |
the change of state from gas to a liquid |
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sublimation |
the process in which a solid changes directly to 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 if 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 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 |
