| A | B |
|---|
| pan balance | a tool that measures mass |
| experiment | A way scientists find out how things work and affect each other. |
| scientific method | The set of steps scientists follow to find out how things work and affect each other. |
| spring scale | A tool that measures forces, such as weight. |
| hypothesis | A statement of what you think will happen and why. |
| standard measure | An accepted measurement. |
| inference | An untested conclusion based on your observations. |
| microscope | A tool that makes an object look several times bigger than it is. |
| observe | What must you do before making an inference? |
| predicting | What are you doing when you use your knowledge to guess what will happen next? |
| beaker | Which tool would you use to find the volume of a liquid? |
| compare | When you describe ways things are alike and different, which inquiry skill do you use? |
| variables | What must be controlled in an experiment? |
| observe and ask questions | The first step in the scientific method. |
