Required Practical 1: Microscopes
- Created by: GreenGooSnake
- Created on: 21-05-20 17:46
Required Practical: Microscopes
I should be able to:
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Describe how to use an optical microscope to look at cells on a prepared microscope slide.
The Microscope
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The centre of the microscope has a stage.
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This is where we place the microscope slide.
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The stage has clips to hold the slide in place.
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Below the stage, there is a lamp.
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Light from the lamp passes up through the microscope slide.
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Some microscopes have a mirror instead of a lamp.
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The mirror is used to reflect light up through the microscope slide.
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Above the stage, we have a set of lenses.
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These are called the objective lenses.
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Most microscopes have 3 different objective lenses.
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These usually have a magnification of 4x, 10x or 40x.
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At the top of the microscope, we have the eyepiece.
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This is where we look through.
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The eyepiece contains the eyepiece lens which has a magnification of 10x.
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The final parts of the microscope are the coarse focusing dial and the fine focusing dial.
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How…
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