A microscope is a scientific tool that allows us to see tiny objects that are too small for the naked eye. It uses lenses to magnify images, making it possible to study things like cells, bacteria, and even small insects. This tool is essential in fields like biology and medicine, helping scientists understand the building blocks of life. There are different types of microscopes, including light microscopes and electron microscopes. Light microscopes use visible light to illuminate samples, while electron microscopes use beams of electrons for higher magnification. Both types have greatly advanced our knowledge in areas such as microbiology and materials science.