Control group

Independent variable

Changed by the experimenter by design

Dependent variable

Changes as a result of the change in the independent variable

Controlled variables

Need to keep constant

Scientific method

Process that lies at the center of scientific inquiry

Chemistry

Science that deals with materials of the universe.

Control group

Set of organisms or samples that do not recieve the treatment

Theory

Set of tested hypotheses that gives an overall explanation

Natural law

Total mass of materials