Microscopes
Biology 1
A microscope is an instrument for viewingobjects that are too small to be seen by thenaked or unaided eye.
It is used in a wide range of scientific fields,major discoveries in :
biology
medicine
materials research
Types of microscopes
Compound Light Microscope – uses aseries of lenses to magnify objects.
Electron Microscope – uses beam ofelectrons instead of light to magnifystructures.
2 types – SEM Scanning electron microscope
- TEM Transmission electron microscope
Magnifications
Eyepiece is 10x
Low power - 4x = ________x
Medium power - 10x = _______x
High power - 40x = _______x
Putting Microscope away
Adjust course adjustment knob to its lowestposition
Remove slide
Move objectives to “scan” or “low” power
Power off and unplug
Wrap cord and cover
Move it back away from the edge of the lab table
Rules
Never move course adjustment knob
Always tell teacher if you
Break a slide
Microscope doesn’t work
Or you cant get specimen focused
Only carry microscope from its arm
Always focus on low power
