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Parts of Microscopes
6th Grade Science
Intro to Microscopes
Barbara Bloemers
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Michigan BenchmarksOr Why Do I Have to Know This?
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Microscope
One of the most important
tools used to study living
things.
“Micro” means very small
“Scope” means to look at
Diagram of a typical student light microscope, showing the parts and the light path
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Test Your Knowledge#1
The word “microscope” means:
A. Glass eye
B. Small ~ to look at
C. To search for
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You are Correct!
The word “microscope” meansVERY SMALL ~ TO LOOK AT
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Oops!
Micro means “very small”
Scope means “to look at”
What do you think microphone might
mean?
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Basic Microscope Parts
1. Base2. Light source3. Diaphragm4. Stage5. Stage clips6. Low power 7. High power8. Nosepiece9. Arm10. Fine Focus11. Body Tube12. Course Focus13. Eyepiece
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Guess What?
We will now look at the 13 major parts of the
microscope and what their functions are that
enable us to see very small things.
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Introducing the Arm and Base
Arm
Supports the body tube. Used to carry the microscope.
Base
Bottom part of the microscope often shaped like a horseshoe.
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Click on the ARM
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Click on the Base
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Stage and Stage Clips
Stage
Place where the object
you are looking at is
placed (Specimen).
Stage Clips
Holds down the slide
on the stage.
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Test your Knowledge #2
#1 Leg or Arm
#2 Stage or Table
#3 Base or Place
Can you name it?
Click on correct name
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Great!!
The ARM supports the BODY TUBE and is used to carry the microscope.
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Super!!!
The STAGE is the name
given to where you would
place the slide with the
object you wish to view
more closely.
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Awesome !!
You are right. The BASE is located at the
bottom and supports the microscope.
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Oops! Let’s Try Again
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Eyepiece (Ocular Lens) and Body Tube
EyepieceThe lens you look through that
magnifies the specimen.
Body TubeThe hollow tube through which
light passes. It holds the lenses
apart.
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Click on the Eyepiece
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Click on the Body Tube
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Course and Fine Focus
Course Focus
Raises or lowers the Body
Tube to focus
Fine Focus
Raises and lowers the
Body Tube and used to
bring objects into focus.
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Click on the Course and Fine Focus Knobs
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Test your Knowledge #3
Click on correct name:
Scope or Eyepiece
Body Tube or Pipe
Control or Fine Focus
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Nice Job
Wow! You are Correct! The EYEPIECE OR OCULAR LENS is the
lens that you look through that magnifies the specimen.
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WowYou are Correct!
The BODY TUBE is the hollow tube
through which light passes.
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Yes!!!
The Course/Fine Focus raises and lowers the
Body Tube. It is used to bring things into focus.
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Oops!!
Try Again
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Nosepiece
The NOSEPIECE isthe round part thatholds the OBJECTIVELENSES apart.
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Low Power/High PowerObjective Lenses
Low Power Objective
Magnifies the specimen at a
lower power
High Power Objective
Magnifies the specimen at a
Higher power
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Click on the Nosepiece
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Click on the Objective Lenses
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Diaphragm and Light Source
DiaphragmChanges the amount of light reaching the objective lenses.Located under the Stage.
Light SourceLocated beneath the Stageand Diaphragm. Sends lighttowards the hole in the stage.
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Click on the Diaphragm
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Click on the Light Source
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Test Your Knowledge#4
4. Ears or Nosepiece
5. Objective or Scope Lens
6. Diaphragm or Throat
Can you name it?
Click on the correct part
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Super Dooper
The NOSEPIECE hold the OBJECTIVE LENSES apart.
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Doing GreatThe microscope has several OBJECTIVE
LENSES. Each lens has a different magnification power.
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Correct AgainThe DIAPHRAGM
regulates the amount
of light that reaches the
objective lens.
It is located at the bottom
of the microscope.
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Try Again
Check the diagram
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Great Job!Well Done
Now that we have
learned the parts let’s
see how we can use
the microscope.
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Follow these instructions when using the
microscope. Click on each underlined word.
1. To carry the microscope, grasp the
ARM with one hand. Hold the BASE with your other hand.
Using the Microscope in 10 Steps
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10 Steps toUsing the Microscope
2. Adjust the DIAPHRAGM while looking
through the EYEPIECE.
3. Adjust the LIGHT SOURCE (mirror) until you see the circle of light.
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10 Steps to Using the Microscope
4. Place the slide on the STAGE.
5. Center the SPECIMEN over the small
opening on the STAGE.
6. Secure the slide with the STAGE CLIPS.
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10 Steps to Using the Microscope
7. While looking at the STAGE from the side,
turn the COURSE FOCUS KNOB to lower
the BODY TUBE until the LOW POWER
OBJECTIVE almost touches the slide.
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10 Steps to Using the Microscope
8. While looking through the EYEPIECE, carefully
move the COURSE FOCUS KNOB until the specimen comes into view.
9. To switch to the HIGH POWER OBJECTIVE
LENS, look at the microscope from the side.
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10 Steps to Using the Microscope
10. Move the NOSEPIECE until the HIGH POWER
OBJECTIVE LENS “clicks” into place. If the
lens hits the slide, the slide and/or lens might
break.
Turn the FINE FOCUS KNOB until the
specimen comes into focus.
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Specimen
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EYEPIECE
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EYEPIECE
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BODY TUBE
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ARM
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STAGE CLIPS
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COURSE FOCUS
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COURSE FOCUS
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BASE
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NOSEPIECE
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HIGH POWER OBJECTIVE LENS
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HIGH POWER OBJECTIVE LENS
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LOW POWER OBJECTIVE LENS
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STAGE
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STAGE
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DIAPHRAGM
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LIGHT SOURCE
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FINE FOCUS KNOB
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Microscope Examples
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Interesting Things to See Using Microscopes
Onion Skin Cheek Cell
Red Blood Cells Skin Cell
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Interesting Fact
This is an antique
German microscope
made in the mid 1920’s.
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Antique Microscope Web Site
After completing assignment
come back to link to an
interesting web site on
antique microscopes.
http://www.arsmachina.com/micro_1.htm
This image was obtained from the Molecular Expressions website.
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Additional Reading
There are many interesting
resources for you to
research on this topic.
Here are just a few books.
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Certificateof Completion.You did a really
great job!
Congratulations!!
For cool information on How a Microscope Works go to:http://science.howstuffworks.com/light-microscope1.htm