Term
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Definition
| how closely a measurement aligns with a correct value |
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Definition
| smallest particle of an element that can enter into a chemical combination |
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Definition
| unit of temperature; water freezes at 0 °C and boils at 100 °C on this scale |
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Term
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Definition
| change producing a different kind of matter from the original kind of matter |
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Definition
| behavior that is related to the change of one kind of matter into another kind of matter |
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Term
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Definition
| study of the composition, properties, and interactions of matter |
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Term
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Definition
| pure substance that can be decomposed into two or more elements |
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Term
| cubic centimeter (cm^3 or cc) |
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Definition
| volume of a cube with an edge length of exactly 1 cm |
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Definition
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Term
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Definition
| ratio of mass to volume for a substance or object |
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Term
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Definition
| (also, factor-label method) versatile mathematical approach that can be applied to computations ranging from simple unit conversions to more complex, multi-step calculations involving several different quantities |
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Term
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Definition
| substance that is composed of a single type of atom; a substance that cannot be decomposed by a chemical change |
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Definition
| number derived by counting or by definition |
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Term
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Definition
| property of a substance that depends on the amount of the substance |
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Term
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Definition
| unit of temperature; water freezes at 32 °F and boils at 212 °F on this scale |
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Term
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Definition
| state in which matter has neither definite volume nor shape |
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Term
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Definition
| combination of substances with a composition that varies from point to point |
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Term
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Definition
| (also, solution) combination of substances with a composition that is uniform throughout |
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Term
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Definition
| tentative explanation of observations that acts as a guide for gathering and checking information |
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Term
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Definition
| property of a substance that is independent of the amount of the substance |
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Definition
| SI unit of temperature; 273.15 K = 0 ºC |
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Definition
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Term
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Definition
| statement that summarizes a vast number of experimental observations, and describes or predicts some aspect of the natural world |
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Term
| law of conservation of matter |
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Definition
| when matter converts from one type to another or changes form, there is no detectable change in the total amount of matter present |
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Term
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Definition
| measure of one dimension of an object |
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Term
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Definition
| state of matter that has a definite volume but indefinite shape |
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Term
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Definition
| (also, cubic decimeter) unit of volume; 1 L = 1,000 cm^3 |
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Term
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Definition
| realm of everyday things that are large enough to sense directly by human sight and touch |
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Term
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Definition
| fundamental property indicating amount of matter |
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Definition
| anything that occupies space and has mass |
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Term
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Definition
| standard metric and SI unit of length |
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Term
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Definition
| realm of things that are much too small to be sensed directly |
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Term
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Definition
| 1/1,000 of a liter; equal to 1 cm^3 |
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Definition
| matter that can be separated into its components by physical means |
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Term
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Definition
| bonded collection of two or more atoms of the same or different elements |
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Definition
| change in the state or properties of matter that does not involve a change in its chemical composition |
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Term
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Definition
| characteristic of matter that is not associated with any change in its chemical composition |
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Definition
| gaseous state of matter containing a large number of electrically charged atoms and/or molecules |
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Definition
| how closely a measurement matches the same measurement when repeated |
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Term
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Definition
| homogeneous substance that has a constant composition |
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Term
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Definition
| procedure used to ensure that calculated results properly reflect the uncertainty in the measurements used in the calculation |
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Term
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Definition
| path of discovery that leads from question and observation to law or hypothesis to theory, combined with experimental verification of the hypothesis and any necessary modification of the theory |
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Definition
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Term
| SI units (International System of Units) |
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Definition
| standards fixed by international agreement in the International System of Units (Le Système International d’Unités) |
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Term
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Definition
| (also, significant digits) all of the measured digits in a determination, including the uncertain last digit |
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Definition
| state of matter that is rigid, has a definite shape, and has a fairly constant volume |
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Definition
| specialized language used to represent components of the macroscopic and microscopic domains, such as chemical symbols, chemical formulas, chemical equations, graphs, drawings, and calculations |
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Definition
| intensive property representing the hotness or coldness of matter |
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Definition
| well-substantiated, comprehensive, testable explanation of a particular aspect of nature |
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Definition
| estimate of amount by which measurement differs from true value |
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Definition
| standard of comparison for measurements |
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Term
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Definition
| ratio of equivalent quantities expressed with different units; used to convert from one unit to a different unit |
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Definition
| amount of space occupied by an object |
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Definition
| force that gravity exerts on an object |
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