P.S. ch 1 vocab

Front

independent variable

Back

The experimental factor that is manipulated; the variable changed by the scientist.

Front

dependent variable

Back

The outcome, or response in an experiment. The variable that is measured.

Front

controlled experiment

Back

An experiment in which only one variable is manipulated at a time.

Front

constant or controlled variable

Back

Things that must stay the same from trial to trial.

Front

control group

Back

The group that does not receive the experimental treatment.

Front

experimental group

Back

The group in an experiment that receives the variable being tested.

Front

Hypothesis

Back

An educated guess.

Front

Conclusion

Back

A judgement based on the information obtained during an experiment.

Front

scientific theory

Back

A well-tested explanation for a set of observations or experimental results.

Front

scientific law

Back

A rule that describes a pattern in nature.