1. Unit Two: Microscope and Light
PA State Standards

2. Microscope
What is Magnification?
A larger than life image

3. What tools can you use to magnify something?
Telescope
Magnifying glass
Projector
Binoculars
Microscope
Glasses

4. Microscope Who is Anton Van Leewenhoek
First to construct a microscope and one of first to see microscopic organisms

5. Robert Hooke First to look at Cells under the microscope.
He was looking at a piece of cork.

6. Types of Microscopes Electron
Uses a beam of electrons to magnify an object
Does not use light rays
Can magnify 100,000 times
Simple
Uses 1 lens
Uses light
Magnifying glass
Compound
Uses at least 2 lenses
Uses light
Can magnify 1,000 times

7. Types of Microscopes

8. of the compound microscope
Identify the parts
of the compound microscope

9. 1. BODYTUBE 8. LIGHT 2. NOSEPIECE 9. EYEPIECE 10. ARM 11. STAGE
3. LOW POWER OBJECTIVE LENS
10. ARM
4. MEDIUM POWER OBJECTIVE LENS
11. STAGE
5. HIGH POWER OBJECTIVE LENS
12. Coarse Focusing Knob
6. STAGE CLIPS
13. Fine focusing knob
7. DIAPHRAGM
14. Base

10. of the compound microscope
Identify the parts
of the compound microscope
Eyepiece
Nosepiece
Body Tube
Arm
Objective Lenses
Diaphragm
Stage
Coarse focusing
Light
Fine Focusing knob
Base

11. Calculating Magnification
How many times bigger are you making the object?
To calculate, Multiply the Eyepiece X the Objective Lens