| A | B |
| Density | Amount of mass within a given volume. |
| Mass | Amount of matter in an object |
| Volume | Amount of space an object takes up |
| Grams (g) | Unit for measuring mass |
| Cubic Centimeters (cm3) | Unit for measuring volume of a solid |
| Milliliters (mL) | unit for measuring volume of a liquid |
| Centimeters (cm) | unit for measuring length (1/100th of a meter) |
| D = M / V | Formula for density |
| L x W x H | Formula for finding volume of regular shape |
| Liquid Displacement | Process for finding the volume of an irregular solid |
| Weight | A measure of gravity on an object |
| Density of water | 1 g/mL (or 1 g/cm³) |
| Objects floats in water | if density of object is less than 1 g/cm3 |
| Matter | Anything that has mass and takes up space |
| Float | When volume is greater than the mass |
| Sink | When mass is greater than the volume |
| Tool used to find volume | Graduated cylinder (for liquid), ruler (for regular objects) |
| Tool to find mass | Triple-beam balance or digital balance |