Light Microscope Parts & Functions
An 8th-grade science worksheet to identify and understand the functions of the main parts of a light microscope.
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Light Microscope Parts & Functions
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Read each question carefully and answer to the best of your ability. Refer to the diagram of the light microscope provided.
Figure 1: Parts of a Light Microscope
1. Which part of the microscope is used to focus the image under low power?
Fine adjustment knob
Coarse adjustment knob
Revolving nosepiece
Diaphragm
2. What is the function of the diaphragm on a light microscope?
To hold the slide in place
To magnify the image
To adjust the amount of light
To move the stage up and down
3. The holds the objective lenses and allows them to be rotated.
4. You should always carry a microscope with one hand on the arm and the other supporting the .
5. The is the flat platform where the slide is placed.
6. The ocular lens is also known as the eyepiece.
True
False
7. The scanning objective lens typically has the highest magnification.
True
False
8. Explain the difference between the coarse adjustment knob and the fine adjustment knob.
9. Why is it important to start focusing with the low power objective lens?
Match each microscope part with its primary function.
10. Light Source
a. Supports the microscope
11. Stage clips
b. Illuminates the specimen
12. Base
c. Holds the slide in place
13. Objective Lenses
d. Magnify the specimen
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