| A | B |
| indicator | a substance that changes color when it contacts certain chemicals, eg. pH paper |
| magnification | the ability of a microscope to make something appear larger |
| mass | the amount or quantity of matter a substance has |
| metric ruler | used to determine the length of something |
| microscope | a tool that uses lenses to make an object appear larger and therefore easier to see |
| stain | a chemical used to make cell structures more visible when viewed under a microscope |
| stereoscope | a microscope with two eyepieces, sometimes called a dissecting microscope |
| volume | used to measure a liquid's volume, or the space it occupies |