| Term | Definition |
| magnification | to enlarge the image of an object too small to be seen with the unaided eye |
| resolution | clarirty of detail in an object being observed |
| compound microscope | light microscope used for magnification of up to 1000X; uses two lenses |
| dissecting microscope | light microscope used for low magnifications and larger objects |
| working distance | space bewteen the objective lens and the slide |
| electron microscope | can magnify up to 200,000X by using electrons instead of light; object must be in vacuum, thus cannot be alive |
| TEM (transmission electron microscope) | electron beam goes through specimen being observed so that the insides can be seen |
| SEM (scanning electron microscope) | electron beam bounces off the surface of the object being seen so that only the surface is visible |
| oil immersion lens | allow a light microscope to magnify up to 1000x |
| low magnification | 40X |
| medium magnification | 100X |
| high magnification | 400X |