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Name __________________ Date _________________ Period _______ # _____ Microscope Handout Label the following parts of the microscope. Use pages 21-22 and 1070-1071 to complete this worksheet. Body tube arm - attaches the eyepiece and body tube to high-power objective - a large lens the base base - supports the microscope body tube - tube that supports the eyepiece coarse adjustment knob - a knob that makes large adjustments to the focus diaphragm - an adjustable opening under the stage, allowing different amounts of light onto the stage eyepiece/ocular - where you place your eye fine adjustment knob - a knob that makes small adjustments to the focus (it is often smaller than the coarse adjustment knob) with high magnifying power low-power objective - a small lens with low magnifying power mirror (or light source) - this directs light upwards onto the slide revolving nosepiece - rotating device that holds the objectives (lenses) stage - the platform on which a slide is placed stage clips - metal clips that hold a slide securely onto the stage Name __________________ Date _________________ Period _______ # _____ Microscope Care & Using the Compound Light Microscope (10 steps) Procedure for Making a Wet Mount Slide (4 steps) Calculating the Total Magnification of a Specimen ___________________ x ____________________ = Total Magnification Example You have focused a Streptococcus bacterium on the microscope. The ocular lens is 10 X and the objective is on medium power (10X). What is the total magnification of this bacterium? Show your work. Types of Microscopes & Their Uses (Give the use and magnification power of each type.) 1. Compound Light Microscope 2. Dissecting Scope (Stereomicroscope)3. Scanning Electron Microscope (SEM) - 4. Transmission Electron Microscope (TEM) -