Shared Flashcard Set

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Unit 2 Cells and Systems Topic 2 Microscopes and Cells
N/A
14
Science
8th Grade
09/11/2009

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Cards

Term
Microscope
Definition
A tool used to view cells and other organisms too small to see with the naked eye.
Term
Eyepiece
Definition
The part you lok through. It has a lens that magnifys by 10X.
Term
Tube
Definition
Holds the eyepiece and the objective lens at the proper working distance from each other.
Term
Coarse adjustment knob
Definition
Moves the tube or stage up and down to bring the object into focus. Used only with low power objective lens.
Term
Fine adjustment knob
Definition
Use with medium and high power lenses to bring picture into sharper focus.
Term
Arm
Definition
Holds the Tube and Stage in place.
Term
Revolving Nosepiece
Definition
Rotating disk that holds two or more objective lenses. It turns to change the lens.
Term
Objective lenses
Definition
Magnifies the object at the powers of 4X, 10X, 40X and 100X.
Term
Stage
Definition
Holds slide in place.
Term
Condenser Lens
Definition
Directs light at the slide.
Term
Diaphragm
Definition
Controls the amount of light reaching the slide.
Term
Light Source
Definition
Shines at light through the condenser lens at the slide.
Term
Field of view
Definition
The area seen through the eyepiece of a microscope.
Term
Wet mount
Definition
A type of sample preparation using the microscope slide, a cover slip and water.
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