| A | B |
|---|
| hypothesis | a reasonable educated guess |
| infer | a conclusion |
| controlled experiment | changing only one factor in the experiment |
| variable | factors that change during the experiment |
| independent variable | a variable that is changed in an experiment |
| dependent variable | a variable that changes as a result of a change in the independent variable |
| constant | a variable that does not change during the experiment |
| model | any representation of an object or event used as a tool for unerstanding the natural world |
