| Term | Definition |
| thermometer | an instrument used to measure temperature |
| meter | the SI unit for length |
| volume | the amount of space something takes up |
| meniscus | the curved surface of a liquid |
| mass | the amount of matter in a given space |
| liter | the SI unit for measuring a liquid |
| graduated cylinder | the instrument used to measure volume |
| milliliter | the SI unit for measuring a small amount of liquid |
| triple beam balance | the instrument used to measure mass |
| gram | the SI unit for measuring mass |
| cubic centimeters | used to find the volume of a solid |
| metric system | the universal system of measurement |
| metric ruler | the tool used to measure length |
| scientific method | an organized set of steps followed when trying to solve a problem |
| hypothesis | a possible explanation of what might happen |
| manipulated variable | the part of the experiment that changes |
| controlled variable | the part of the experiment that remains constant |
| milli | thousandth |
| centi | hundredth |
| kilo | thousand |