| A | B |
| problem/purpose | defines what is to be investigated |
| research | to gather information about a topic |
| hypothesis | educated guess written with an "if...then" statement |
| materials | list of supplies used in an experiment |
| experimental design | tells the important parts of an experiment |
| procedure | step by step instructions |
| observation/analysis | used to describe what happens in experiment; resuts interpreted with visuals |
| conclusion | states whether hypothesis was correct or incorrect |
| variable | something that changes |
| independent variable | variable that you, the scientist, contol |
| dependent variable | variable that is measured |
| constants | variables that remain the same so your experiment will be valid |