| A | B |
|---|
| idependent variable | factor that the person conducting the experiment changes on purpose |
| dependent variable | factor that changes as a result of changing the independent variable |
| control variable | factor that is kept the same during an experiment |
| hypothesis | a proposed explanation for a scientific problem |
| 1000 meters | 1 kilometer |
| 1 centimeter | 10 millimeters |
| 100 centimeters | 1 meter |
| thermometer | measures temperature |
| triple-beam balance | measures mass |
| graduated cylinder | measures volume |
| ruler | measures length |
| volume | the amount of space that something occupies |
| mass | the amount of matter that something is made of |
| temperature | a measure of how hot (or cold) something is |
| day | one rotation of Earth |
| year | one revolution of Earth |
| 28 earth days | one revolution of the moon |
