SBI3C Biology
Name: __________________________
Date: ___________________________
The Compound Light Microscope
Summary:
Magnification:
 _____________________
 Image is ___________
 Useful for looking at ________
Resolution:
& _________ objects
 _________ magnification
Compound Light Microscope Parts & Function
Label each of the following parts on the compound light microscope.
Exercise 1: Match the following description of each microscope part with its name.
1. _________________________ has a lens. Allows you to look through when you want to see something under
magnification.
2. _________________________ has three lenses. It can rotate to switch from one lens to another.
3. _________________________ supports the slide.
4. _________________________ holds the slide in place.
5. _________________________ comes from below; allows you to see the slide.
6. _________________________ is under the stage – it controls the amount of light that shines through.
7. _________________________ supports the microscope.
8. ____________________________________________ the large knob that brings objects into focus.
9. ____________________________________________ the small knob that brings objects into clearer focus.
More about Lenses
The lens in the eyepiece is called the ocular lens. Each of the lenses attached to the nosepiece is called an objective lens.
 The shortest lens is the ______________________________, it has a magnification of ___________.
 The middle lens is the _______________________________, it has a magnification of ___________.
 The longest lens is the _______________________________, it has a magnification of ___________.
Microscope Care
1. Always carry with_________ hands.
2. Only touch lenses with _____________________.
3. Never ___________ knobs if they are stuck.
4. Put on ________ before putting away.
5. Store with a ______________________.
Using the Microscope
1. Put it on a ___________________________ desk.
2. Remove cover and _________________________.
3. Check that the ________________ is open.
4. Always begin with ________________________
_________________ lens.
Calculating Magnification
5.
6.
7.
8.
9.
10.
Place slide on ___________ and center it.
Secure slide with _____________________.
Focus with ________________________________.
Select _________________ and focus.
Select _________________ objective.
Focus with _______________________________ only.