Science

INTRODUCTION TO THE LIGHT MICROSCOPE

The virtual microscope is a little more complicated than the microscope used in the lab, but with patience, you should be able to complete this activity.

Access the Virtual Microscope at Virtual Microscope - Click on the link that says "the virtual scope"

1. Familiarize yourself with the microscope, run the tutorial and examine the parts you will be working with.

a. How many objectives are on the virtual microscope? There are 4 objectives

b. What are the numbers listed on each of the objectives? 4, 10, 40, 100

2. You will be looking at the slide (top right) labeled "letter e". Follow the tutorial and use the microscope adjustments to focus the "e" on each of the objectives.

Draw the "e" exactly as it appears

Scanning (4) | Low (10) | High (100) |

| | |

3. Which letter on the microscope points to the

OCULAR ________

COARSE ADJUSTMENT ______

FINE ADJUSTMENT ______

STAGE CENTERING ______

4. Now view several microscope images of "common things". Go to sample slides

After viewing the images, go to the quiz. Write down the names of the specimens for each letter.

A. _____________________________

B. _____________________________

C. _____________________________

D. _____________________________

E. _____________________________

F. _____________________________

G. _____________________________

H. _____________________________

A quick review:

1. What objective lens you should have in place to begin to look at your specimen? __________

2. True or False : You only use the course focus knob when you have the 4X scanning objective

In place._______________________

3. Assuming the light is on and the oculars are in place what are the next 2 steps?

1.

2.

4. If you need more light to view your specimen then you need to adjust the _______________.