Basic Concepts in Physical Science

Front

Physical science

Back

The study of matter and energy

Front

Scientific method

Back

A logical, systematic approach to the solution of a scientific problem

Front

Observation

Back

Information obtained through the senses

Front

Inference

Back

A logical conclusion or interpretation drawn from evidence, observations, and prior knowledge, rather than a direct observation itself

Front

Hypothesis

Back

A prediction that can be tested by research and experiments

Front

Experiment

Back

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact

Front

Dependent variable

Back

What you measure in the experiment and what is affected during the experiment

Front

Independent variable

Back

The experimental factor that is manipulated; the variable whose effect is being studied; what you change on purpose

Front

Controlled variable

Back

Factor in an experiment that a scientist purposely keeps the same

Front

Control group

Back

In an experiment, the group not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment