thinking log 10/5/15 read 828-829 to prepare for the thinking log 13. compound microscopes have an...
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Thinking Log 10/5/15
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.
MICROSCOPESAn instrument that makes small
objects (like cells) look largerWe will be using compound light
microscopes; they use a light and two lenses
I.
B.
C.
D.
E.
G.
F.
H.
A. Microscope type: Simple or compound ?
J.
Body Tube
Objective Lenses
Light Source
Eyepiece Lens
Arm
Stage
Coarse KnobFine AdjustmentKnob
Base
Objective Lenses
“Power” Color Actual Magnifying Power
Low Red 4
Medium Yellow 10
High Blue 40
Focusing the microscopeOn low power, first use the
coarse adjustment knob, then the fine adjustment knob.
On medium and high power, only use the fine adjustment knob.
Which looks like…
Which looks like…
Which looks like…
Which looks like…
Which looks like…
Which looks like…
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.
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.
4 - Slowly lower the cover slip on top of the drop.
Cover Slip
Lower slowly
LabStart at the assigned stationRead 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.