||The ongoing process of discovery in science; the diverse ways in which scientists study the natural world and propose explanations based on evidence they gather.
||A possible explanation for a set of observations or answer to a scientific question; must be testable.
||A factor that can change in an experiment.
||The one factor that a scientist changes during an experiment; also called independent variable.
||The factor that changes as a result of changes to the manipulated, or independent, variable in an experiment; also called dependent variable.
||An experiment in which only one variable is manipulated at a time.
||Facts, figures, and other evidence gathered through observations.
||A well-tested explanation for a wide range of observations or experimental results.
||A statement that describes what scientists expect to happen every time under a particular set of conditions.