Light Microscope Parts & Functions
Grade 9 Science worksheet on the parts and functions of a light microscope, including identification, multiple choice, and short answer questions.
Includes
Standards
Topics
Light Microscope Parts & Functions
Name:
Date:
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Read each question carefully and answer to the best of your ability. Refer to the diagram of the light microscope as needed.
Identify the labeled parts of the microscope in the diagram below.

1.
2.
3.
4.
5.
6.
7. Which part of the microscope is used to make large adjustments to the focus?
Fine adjustment knob
Coarse adjustment knob
Diaphragm
Revolving nosepiece
8. Which objective lens provides the lowest magnification?
Scanning power (4x)
Low power (10x)
High power (40x)
Oil immersion (100x)
9. The is the flat platform where the slide is placed.
10. The regulates the amount of light passing through the specimen.
11. To calculate the total magnification, you multiply the eyepiece magnification by the magnification.
12. You should always start focusing with the high power objective lens.
True
False
13. The revolving nosepiece holds the objective lenses and allows them to be changed.
True
False
14. Briefly explain the function of the eyepiece (ocular lens) in a light microscope.
15. Describe the proper way to carry a microscope.