1. Read 828-829 to prepare for the thinking log
13. Compound microscopes have an eyepiece lens and _______ lenses.
14. When using a microscope on high power, you should only use the _________ adjustment knob.

2. MICROSCOPES
An instrument that makes small objects (like cells) look larger
We will be using compound light microscopes; they use a light and two lenses

3. Eyepiece Lens Body Tube Arm Objective Lenses Stage Coarse Knob
A. Microscope type: Simple or compound ? E.
Eyepiece Lens B.
Body Tube F.
Arm C.
Objective Lenses G.
Stage H.
Coarse Knob I.
Fine Adjustment
Knob D.
Light Source J.
Base

4. Objective Lenses “Power” Color Actual Magnifying Power Low Red 4 4
Medium
 Yellow
 10
High
 Blue
40 

5. Focusing the microscope
On low power, first use the coarse adjustment knob, then the fine adjustment knob.
On medium and high power, only use the fine adjustment knob.

6. Which looks like…

8. Which looks like…
Which looks like…

10. Which looks like…
Which looks like…
Which looks like…

12. How to properly use a microscope

13. You do not need to use the stage clips when viewing wet-mount slides!
How to make a wet-mount slide …
1 – Get a clean slide and coverslip from your teacher.
2 – Place ONE drop of water in the middle of the slide. Don’t use too much or the water will run off the edge and make a mess!
3 – Place the edge of the cover slip on one side of the water drop.
4 - Slowly lower the cover slip on top of the drop.
Cover Slip
Lower slowly
You do not need to use the stage clips when viewing wet-mount slides!
5 – Place the slide on the stage and view it first with the red-banded objective. Once you see the image, you can rotate the nosepiece to view the slide with the different objectives.

14. Lab Start at the assigned station
Read the direction on your paper and use the tools (if any) at that station to help you complete the task
If you have questions, please raise your hand.