Mohs Hardness Scale Lab Lancaster High School Hayhurst Page 3 Analysis and Conclusion For each item below, select the letter that labels the correct part of the image. _____ 1. Mineral cannot scratch glass but scratches a fingernail. _____ 2. Mineral scratches glass but is scratched by quartz. _____ 3. Mineral scratches quartz and topaz. _____ 4.
What are the differences between a light microscope a compound microscope a stereoscopic light microscope a transmission electron microscope and a scanning electron microscope? A light microscope uses a series of lenses to focus light allowing small objects to appear larger.
Diagram of a compound microscope. A compound microscope uses a lens close to the object being viewed to collect light (called the objective lens) which focuses a real image of the object inside the microscope (image 1). That image is then magnified by a second lens or group of lenses (called the eyepiece) that gives the viewer an enlarged inverted virtual image of the object (image 2).