| A | B |
|---|
| variable | anything that you change in an experiment to affect the outcome |
| controlled experiment | only one variable is changed at a time in an experiment |
| hypothesis | an educated guess |
| independent variable | what do I know before the experiment |
| dependent variable | what do I know after the experiment |
| system | any collection of objects that is working together |
| mass | amount of matter in an object |
| data | information gathered during an experiment |
| two-coordinate graph | It shows the outcome of a series of experiments when a variable is changed by steps. Used to help make predictions. |
| scientific method | A step-by-step procedure often used to solve a problem or discover why things happen. |
