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The variable that the experimenter changes during an experiment. It is also called the manipulating variable.
The variable that is observed during the experiment. It is also called the responding variable.
A well-tested explanation for a broad set of observations. It can never be proven because it is possible that it may be changed in the future.
A description of the ability of a substance to undergo a specific chemical change.
A change during which some properties of a material change, but the composition of the material does not change
A description of a quality or condition of a substance that can be observed or measured without changing the composition of the material
A property that depends on the type of matter in a sample, not the amount of matter
International System of Units
The revised version of the metric system adopted by international agreement in 1960
All the digits that can be known precisely or with certainty in a measurement plus a last estimated digit.
Dimensional Analysis (Factor-label)
A technique of problem solving that uses units that are part of a measurement to help solve the problem
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