Download - Parts of Microscopes
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Parts of Microscopes
6th Grade ScienceIntro to MicroscopesBarbara Bloemers
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Michigan BenchmarksOr Why Do I Have to Know This?
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MicroscopeOne of the most importanttools used to study livingthings.
“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 eyeB. Small ~ to look atC. 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 mightmean?
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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 themicroscope and what their functions are thatenable 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
StagePlace where the objectyou are looking at isplaced (Specimen).
Stage ClipsHolds down the slideon 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 namegiven to where you wouldplace the slide with theobject you wish to viewmore 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 whichlight 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 FocusRaises or lowers the BodyTube to focus
Fine FocusRaises and lowers the
Body Tube and used tobring 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 JobWow! 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 ObjectiveMagnifies the specimen at alower power
High Power ObjectiveMagnifies the specimen at aHigher 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 DooperThe 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 DIAPHRAGMregulates the amountof light that reaches the objective lens.It is located at the bottomof the microscope.
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Try AgainCheck the diagram
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Great Job!Well Done
Now that we havelearned the parts let’s see how we can usethe microscope.
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Follow these instructions when using themicroscope. 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 FactThis is an antiqueGerman microscopemade in the mid 1920’s.
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Antique Microscope Web Site
After completing assignment come back to link to aninteresting 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 interestingresources for you toresearch 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