| Term | Definition |
| scientific inquiry | diverse ways in which scientists study the natural world and propose explanations based on evidence they gather |
| hypothesis | a possible explanation for a set of observations or answer to a scientific question |
| variables | all factors that can change in an experiment |
| manipulated variable | the variable that is purposely changed (manipulated) |
| responding variable | the factor that may change in response to the manipulated variable |
| controlled experiment | only one variable is changed (manipulated) |
| operational definition | a statement that describes how to measure a particular variable or define a particular term |
| data | facts, figures,and other evidence gathered through obserations. |
| conclusion | a summary of what you have learned from an experiment |
| communicating | the sharing of ideas and experimental findings with others through writing and speaking |
| scientific theory | a well-tested explanation for a wide range of observations or experimental results |
| scientific law | a statement that describes what scientists expect to happen every time under a particular set of conditions |