Microscope
Download
1 / 6

Let - PowerPoint PPT Presentation


  • 269 Views
  • Updated On :

Microscope Basics T. Trimpe 2005 http://sciencespot.net/ Diaphragm Base Always carry a microscope with one hand holding the arm and one hand under the base . Ocular lens (Eyepiece) Body Tube Nosepiece Arm Objectives Stage Stage Clips Coarse Adjustment Fine Adjustment Light

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Let' - jaden


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Slide1 l.jpg

Microscope

Basics

T. Trimpe 2005 http://sciencespot.net/


Slide2 l.jpg

Diaphragm

Base

Always carry a microscope with one hand holding the arm and one hand under the base.

Ocular lens(Eyepiece)

Body Tube

Nosepiece

Arm

Objectives

Stage

Stage Clips

Coarse Adjustment

Fine Adjustment

Light


Slide3 l.jpg

What’s my power?

To calculate the power of magnification, multiply the power of the ocular lens by the power of the objective.

What are the powers of magnification for each of the objectives we have on our microscopes?

Fill in the table on your worksheet.


Slide4 l.jpg

We can see better details with higher the powers of magnification, but we cannot see as much of the image.

Which of these images would be viewed at a higher power of magnification?

Comparing Powers of Magnification


Let s give it a try l.jpg

3 – Once you have the image in view, rotate the nosepiece to view it under different powers. Draw what you see on your worksheet!

Be careful with the largest objective! Sometimes there is not enough room and you will not be able to use it!

Let’s give it a try ...

1 – Turn on the microscope and then rotate the nosepiece to click the red-banded objective into place.

2 – Place a slide on the stage and secure it using the stage clips. Use the coarse adjustment knob (large knob) to get it the image into view and then use the fine adjustment knob (small knob) to make it clearer.

4 – When you are done,turn off the microscope and put up the slides you used.


Slide6 l.jpg

4 - Slowly lower the cover slip on top of the drop. to view it under different powers. Draw what you see on your worksheet!

Cover Slip

Lower slowly

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.

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.


ad