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| the science that deals with the composition and properties of substances and various elementary forms of matter. |
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| anything that has mass and occupies space. |
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| a measurement of the amount of matter in an object. |
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| a measurement of the gravitational force acting on an object. |
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| the amount of space, measured in cubic units, that an object or substance occupies. |
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| the number given when the mass of a sample of a substance is divided by the volume of the same sample. |
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| a property of matter that can be observed or measure without trying to change the composition of the matter being studied. |
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| a change matter undergoes without changing composition. |
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| a property matter demonstrates when attempts are made to change it into new substances. |
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| a change matter undergoes that involves changes in composition. |
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| the smallest particle of a pure substance that has the properties of that substance. |
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| the limit of chemical subdivision for matter. |
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| two or more kind of atoms. |
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| matter that has the same properties throughout the sample. |
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| matter with properties that are not the same throughout the sample. |
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| matter with properties that are not the same throughout the sample. |
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| matter that has a constant composition and fixed properties. |
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| a pure substance consisting of only one kind of atom in the form of homoatomic. molecules or individual atoms. |
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| a pure substance consisting of two or ore kinds of atoms in the form of heteroatomic molecules or individual atoms. |
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| the numbers in a measurement that represent the certainty of the measurement, plus one number representing an estimate. |
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| atoms having the same atomic number but different mass numbers. |
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| the number of particles (atoms or molecules) contained in a sample of element or compound with a mass in grams equal to the atomic or molecular weight, respectively. |
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