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| a logical approach to solving problems by observing and collecting data, formulating hypothesis, testing, and making up theories |
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| a specific portion of matter that is studied during an observation |
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| more than one physical object; represents an explanation about events |
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| a broad generalization that explains a body of facts |
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| something that has magnitude size or amount |
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| Le Systeme International Unites |
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| the ratio of mass and volume |
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| a ration derived from the equality between two different units that can be used to convert one to another |
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| a mathematical technique that allows you to use units to solve problems |
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| refers to the closeness of measurements to correct or accepted value of the quantity measusre |
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| refers to the closeness of a set of measurements of the same quantity made in the same way |
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| calculated by the accepted value minus the experimental, dividing it by the accepted and multiply by 100 |
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| a measurement that consists of all digits known with the certainty plus one final digit, which is somewhat uncertain or is estimated |
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| if dividing one by another gives a constant value |
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| if the product is constant |
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| the study of composition, structure, and properties of matter, the process that matter undergoes, and the energy changes that accompany these processes |
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| a substance that can be broken down into simple substances; amde of two or more atoms |
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| depend on the amount of matter that is present |
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| do not depend on the amount of matter present |
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| a characteristic that can be observed and changes in identity |
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| relates to a substance's ability to undergo changes that transform it into different substances |
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| a change in which one or more substance are converted into different substances |
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| the substances taht react in a chemical cahgne |
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| the substances that are formed by the chemical change |
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| a blend of two or more kinds of matter, each of which retains its own identity and properties |
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| a fixed composition and differs from a mixture; has same characteristics and composition |
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| an element that is a good electrical conductor and a good heat conductor |
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| an element that is a poor coductor of heat |
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