| A | B |
| purpose | Why are you doing this experiment? |
| hypothesis | What do you think will happen? |
| materials | What things do you need in order to do this experiment? |
| procedure | What steps will you follow in this experiment? |
| observation | What did you see and hear happening? What changes occurred during the experiment? |
| conclusion | What did you learn from this experiment? It answers the question in the purpose. |
| independent variable | What did you change? It is also called the manipulated variable. |
| dependent variable | What happened because you made a change? It is also called the responding variable. |
| control | What stayed the same each time you did the experiment? |