View
234
Download
1
Category
Preview:
Citation preview
The MicroscopeParts, Functions, &
Proper Use
The Microscope: An Introduction
• Definition: A microscope is an instrument used to study objects that are too small to be seen by the naked eye.
• The compound light microscope uses lenses and a light source to magnify (enlarge) the object/specimen.
Images Produced by Light Microscopes
Amoeba Streptococcus bacteria Anthrax bacteria
Human cheek cells Plant cells Yeast cells
Parts of a Microscope
• Take a look at the microscope and read the definitions of each part. Use these items to fill in your diagram.
• Use your pencil lightly, in case you need to make corrections
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
Click on Me
#9 Eye Piece or Ocular Lens—The part you look at with your eye. Usually 10 X magnification.
Click Here to Return to the Main Slide
Click Here to Return to the Main Slide
#10 Arm – Used to safely transport microscope
Click Here to Return to the Main Slide
#11 Stage – Slides are placed on this. The hole allows light to pass through the slide.
Click Here to Return to the Main Slide
#12 Coarse Adjustment Knob – Moves tube up and down to bring object into focus. Used only with low-power objective.
Click Here to Return to the Main Slide
#13 Fine Adjustment Knob – Brings object into sharper focus. Used with medium and high-power lenses.
Click Here to Return to the Main Slide
#14 Base – Used to safely transport the microscope
Click Here to Return to the Main Slide
#1 Tube – Transmits light from the objective lens to the eyepiece.
Click Here to Return to the Main Slide
#2 Revolving Nosepiece – Rotating disk to change lens.
Click Here to Return to the Main Slide
#3 Low Power Objective Lens – The first lens you use when doing proper microscope work. Usually 4X
Click Here to Return to the Main Slide
#4 Medium Power Objective Lens – The second lens you use when doing proper microscope work. Usually 10 X
Click Here to Return to the Main Slide
#5 High Power Objective Lens – The highest magnification used. Usually 40X. NEVER use the course adjustment when using this lens.
Click Here to Return to the Main Slide
#6 Stage Clips – Use to keep the slide in place.
Click Here to Return to the Main Slide
#7 Diaphragm – Use to vary the amount of light passing through the slide. Usually it is better if the amount of light is low.
Click Here to Return to the Main Slide
#8 Light Source – Sends light up through the diaphragm and through the slide for viewing
Parts of a Microscope HWK
• Use the previous slides to match the correct terms and definitions from the handout.
– This is so that you don’t have to write out all the definitions on your own!!!!
Proper Care of the Microscope
• Chart paper activity – students come up with a “care/usage hint” for each microscope part.
Recommended