| A | B |
| Eye Piece | For yor eyes to look through |
| Objective lens | For magnifying the specimen |
| Stage | To mount the specimen |
| Diaphragm | To allow light to pass through |
| Mirror | To reflect light |
| Rough adjustment | To raise or lower the stage |
| Fine adjustment | To focus the image of the specimen clearly |
| Microscope | An instrument to magnify tiny objects |
| Binoculars | An instrument to see far objects |