Ch.1 Chem Vocab

Mass

Mass

Amount of matter in an object.

Matter

Anything that has mass and occupies space.

Weight

Force of gravity on an object's mass.

Scientific Method

Systematic research approach.

Qualitative Data

Descriptive, non-numerical information.

Quantitative Data

Numerical information.

Hypothesis

Testable prediction or explanation.

Experiment

Controlled procedure to test a hypothesis.

Independent Variable

Factor changed by the experimenter.

Dependent Variable

Factor measured in response to changes.

Control

Standard for comparison in an experiment.

Conclusion

Summary of experimental results.

Model

Representation of an idea, object, or system.

Theory

Well-substantiated explanation of natural phenomena.

Scientific Law

Statement describing consistent natural phenomena.

Pure Research

Study for knowledge's sake.

Applied Research

Study to solve practical problems.

Technology

Application of scientific knowledge.

Chemistry

Study of matter and its interactions.