Ch.1 Chem Vocab

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19 Terms

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Mass

Amount of matter in an object.

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Matter

Anything that has mass and occupies space.

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Weight

Force of gravity on an object's mass.

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Scientific Method

Systematic research approach.

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Qualitative Data

Descriptive, non-numerical information.

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Quantitative Data

Numerical information.

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Hypothesis

Testable prediction or explanation.

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Experiment

Controlled procedure to test a hypothesis.

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Independent Variable

Factor changed by the experimenter.

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Dependent Variable

Factor measured in response to changes.

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Control

Standard for comparison in an experiment.

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Conclusion

Summary of experimental results.

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Model

Representation of an idea, object, or system.

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Theory

Well-substantiated explanation of natural phenomena.

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Scientific Law

Statement describing consistent natural phenomena.

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Pure Research

Study for knowledge's sake.

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Applied Research

Study to solve practical problems.

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Technology

Application of scientific knowledge.

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Chemistry

Study of matter and its interactions.