1. Microscopes
SC.912.L14.4

2. Essential Question
How do microscopes work?

3. Types of microscopes Light Microscopes Electron Microscopes
Produce magnified images by focusing visible light.
Staining can be used to show structures in the cell.
Can magnify up to 1000x
Electron Microscopes
Produce magnified images by focusing a beam of electrons
Some can magnify 100,000x

4. Electron Microscope

5. Light Microscope

6. Vocabulary Foldable ( Light Microscope)
Eyepiece – contains magnifying lens
Arm – supports the body tube
Stage – supports the slide being observed
Body Tube – Maintains the proper distance between the eyepiece and the objectives
Focus- Fine and course adjustments move the body tube to focus the image
Objective – Provides magnification. Total magnification = eyepiece times objective
Condenser or diaphragm – controls the amount of light passing up to the eyepiece
Mirror or illuminator – produces or reflects light up toward the eyepiece

7. Comparing Microscopes
How image is created
Advantage
Disadvantage
Light Microscope
Scanning Electron Microscope
Transmission Electron Microscope