The Eyepiece: This is the where you look into the microscope. eyepieces are usually labelled x10 or x15.

The Objective Lens: There are usually three objective lenses. Typically these would be labelled X4 x10 and x40 on a school microscope.

The Stage: Is the part of the microscope which holds the slide.

The Slide: Is a rectangular piece of glass used to hold the specimen.

A Coverslip: Is a piece of thin glass placed over the item you are examining on the slide.

The Coarse Focus: is used to focus the microscope on the item you are examining

The Fine Focus: is used to change the focus slightly, so that the specimen (The item under examination) is very clear.

The Light: is used to illuminate the specimen. In order to view something with a microscope. Some microscopes use a mirror instead of a light.


The magnification of a microscope: Is calculated by multiplying the eyepiece power by the objective power. Therefore if we have a X10 eyepiece and have selected a x15 objective lens. the magnification is 150. This means that the object we are looking at (The Specimen) is being magnified 150 times