| A | B |
| Arm | Supports the body tube |
| Coarse Adjustment Knob | Moves the body tube (or stage) for focusing with the low-power objective lens |
| Fine Adjustment Knob | Moves the body tube (or stage) for focusing with the high-power objective lens |
| Diaphragm | Controls the amount of light passing through the opening of the stage |
| Base | Supports the microscope |
| Eyepiece | Part that you look through, it contains a lens that magnifies 10x |
| Nosepiece | Holds the objective lenses and is able to rotate to change magnification |
| High-power objective lens | Magnifies 40 x |
| Stage Clips | Used to hold a slide in place on the stage |
| Mirror | Reflects light upward through the diaphragm |
| Stage | Part of the microscope that supports the slide that is being viewed |
| Cover Slip | Small glass or plastic piece that is used to cover a water droplet on a slide |
| Slide | Small glass plate on which specimen are placed for viewing |
| Low-power objective lens | Magnifies 10 x |