The microscope is one of the most important tools used in chemistry and biology. This instrument allows you to magnify an object to look at it in detail. Many types of microscopes exist, allowing different levels of magnification and producing different types of images. It is also very important in microbiology fields, it enables them to study specimens that are too small to see with the naked eye. In microbiology, microscope is an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times. Light (natural or artificial) is transmitted through, or reflected from, the specimen and then passed through a system of lenses that produce a magnified image. It is also possible to measure the actual size of your specimen. A mini ruler called an eyepiece graticule that is placed in the eyepiece is needed. This is then calibrated using a special microscope slide called a stage micrometer. There are two types of microscope that are simple microscope and compound microscope. Simple microscope is a single lens system that magnifies the object being viewed. Compound microscope consists of two lenses. The image produced by the first of the two lenses is remagnified by the second lens. The magnification is thus compounded. The microscope we used in the experiment is light microscope, it is an example of compound microscope. The compound microscope is the most familiar form of optical microscope. A