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Skill 2: Compare and contrast compound light microscopes and electron microscopes.
Skill 2: Compare and contrast compound light microscopes and electron microscopes.
Research light microscopes and electron microscopes and answer the questions below. If you want to use a textbook, ask me where they are. Microscope information begins on page 244.
Research light microscopes and electron microscopes and answer the questions below. If you want to use a textbook, ask me where they are. Microscope information begins on page 244.
Light Microscope
Light Microscope
How many times can it magnify a specimen?
How many times can it magnify a specimen?
What is being focused to make the specimen show up? Hint: look at the name.
What is being focused to make the specimen show up? Hint: look at the name.
Can you view living things under it?
Can you view living things under it?
Electron Microscope
Electron Microscope
How many times can it magnify a specimen?
How many times can it magnify a specimen?
What is being focused to make the specimen show up? Hint: look at the name.
What is being focused to make the specimen show up? Hint: look at the name.
Can you view living things under it?
Can you view living things under it?
What is the magnification of the ocular lens, or eyepiece? x10
What is the magnification of the ocular lens, or eyepiece? x10
Which length objective lens has the lowest magnification? What color is this on our microscopes? Scanning (shortest) - red
Which length objective lens has the lowest magnification? What color is this on our microscopes? Scanning (shortest) - red
Which length objective lens has the highest magnification? What color is this on our microscopes? High (longest) - blue
Which length objective lens has the highest magnification? What color is this on our microscopes? High (longest) - blue
How do you calculate the total magnification of a specimen? Multiply the ocular lens by the objective lens.
How do you calculate the total magnification of a specimen? Multiply the ocular lens by the objective lens.
Compare and contrast the light and electron microscopes
Compare and contrast the light and electron microscopes
Which one magnifies more?
Which one magnifies more?
Which one costs less?
Which one costs less?
Which lets you look at live specimens?
Which lets you look at live specimens?
Which is more portable, or easily carried?
Which is more portable, or easily carried?
Do this! Write a summary paragraph about the advantages and limitations of light microscopes and electron microscopes. Use your answers from the questions above.
Do this! Write a summary paragraph about the advantages and limitations of light microscopes and electron microscopes. Use your answers from the questions above.
Come check your answers before moving on.
Come check your answers before moving on.
Skill 3: Know the names and functions of basic light microscope parts.
Skill 3: Know the names and functions of basic light microscope parts.
Compound Light Microscope
Compound Light Microscope
You may work with a partner to help you label the microscope diagram. There is a word bank below the image. Be ready to take a quiz where you will have to match the labels with the numbered parts.
You may work with a partner to help you label the microscope diagram. There is a word bank below the image. Be ready to take a quiz where you will have to match the labels with the numbered parts.
Do this!
Do this!
Work with a partner to learn the parts of the microscope above. Do not label #2.
Work with a partner to learn the parts of the microscope above. Do not label #2.
A) Stage
A) Stage
B ) Light source
B ) Light source
C) Arm
C) Arm
D) Base
D) Base
E ) Fine adjustment knob
E ) Fine adjustment knob
F) Gross/Coarse adjustment knob
F) Gross/Coarse adjustment knob
G) Objective lenses
G) Objective lenses
H) Diaphragm
H) Diaphragm
I) Stage clips
I) Stage clips
J) Ocular lens / eyepiece
J) Ocular lens / eyepiece
K) Revolving nosepiece
K) Revolving nosepiece
Once you are sure you have learned the parts of the light microscope, ask for the paper practice quiz. Do not use resources. Check your answers and then take it again, if necessary, until you earn 100%.
Once you are sure you have learned the parts of the light microscope, ask for the paper practice quiz. Do not use resources. Check your answers and then take it again, if necessary, until you earn 100%.
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