Parts of the Light Microscope
A Grade 7 science worksheet covering the parts and functions of a light microscope.
Includes
Standards
Topics
Parts of the Light Microscope
Name:
Date:
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Read each question carefully and answer to the best of your ability. Refer to the diagram of the microscope as needed.
Study the diagram of the light microscope below:
1. The is used to focus the image under low power.
2. The holds the objective lenses and can be rotated to change magnification.
3. The provides light to view the specimen.
4. The is where you place the slide for viewing.
5. The is used for fine-tuning the focus, especially under high power.
6. Which part of the microscope do you look through?
Stage
Eyepiece (Ocular Lens)
Objective Lens
Base
7. Which of the following is NOT a function of the diaphragm?
Adjusting the amount of light
Focusing the image
Controlling contrast
Optimizing illumination
8. The coarse adjustment knob should be used for focusing when using the high-power objective lens.
True
False
9. To calculate total magnification, you multiply the eyepiece magnification by the objective lens magnification.
True
False
10. Describe the function of the stage clips on a microscope.
11. Why is it important to carry a microscope with two hands?
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