The type of microscope used in most science classes is the compound light microscope. This microscope employs a compound lens system and is used to view small, thin specimens that allow light to pass through them. Compound microscopes are commonly used in laboratories, schools, and universities for a variety of applications, including biology, chemistry, and physics. They are also used in manufacturing, quality control, coin collecting, and botany. In addition to compound microscopes, stereo microscopes are also commonly found in science classrooms. Stereo microscopes use two eyepieces and light at lower magnification to view 3D opaque objects. When choosing a microscope for a science classroom, factors to consider include the type of microscope, size, head type, and illumination.