Name / Date
MICROSCOPE
--Internet Lab-Access the Virtual Microscope at http://www.udel.edu/biology/ketcham/microscope/
Click on the link that says "the virtual scope"
1. In the blue box “Getting Started” click on the “CC” button.
2. After you see the gray box with the text “Welcome. Click here for a tour”, click
“Start tour”. Follow instructions to familiarize yourself with the microscope.
a. How many objectives are on the virtual microscope?
b. What are the numbers listed on each of the objectives?
c. What is the total magnification on each objective lens?
2. You will be looking at the slide labeled "bacterial capsule". Follow the checklist and
use the microscope adjustments to focus the specimen on each of the objectives.
Draw the specimen 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 ______
5. Go to www.biologycorner.com/microscope/. Now view several microscope images of
"common things".
After viewing the images, go to the quiz. Write down the names of the specimens for
each letter.
A. _____________________________
B. _____________________________
F. _____________________________
C. _____________________________
G. _____________________________
D. _____________________________
H. _____________________________
6. Go to http://www.media.pearson.com.au/schools/cw/au_sch_phillips_sci2_1/dnd/4_1_2.html
When you are ready to start the timer, click “Start” (green button in bottom right
corner). After you are successful on the “Easy” setting, increase difficulty until you
can master the “Hard” difficulty level.
Use the following website http://www.microimaging.ca/forum.htm
Find an animal named a "Brine Shrimp" and:
7. Describe what the brine shrimp looks like using two describing sentences
8. Use the scale at bottom right to figure out how large the organism is. Tell me the size
of the organism in mm (It is NOT 1mm… use the scale to estimate its size)
9. How is the freshwater amphipod different than the Brine Shrimp?
Find a protozoan called an "amoeba" and:
10. Describe the amoeba using two describing sentences
11. How do you think the amoeba moves through the liquid?
12. Compare the amoeba to the Vorticella
Part 2: Use the following website Scanning Electron Micro http://www.mos.org/sln/SEM/
13. Describe how a scanning electron microscope works
Click on the magnifying glass at bottom of screen to return to main menu
Next, click on the “Image Gallery” link
Look at the images in the gallery and answer the following questions:
14. The deer tick, responsible for transmitting Lyme disease, is about the size of a
____________________.
16. The mosquito’s head is mostly ______________________.
17. Where does the spiny-headed worm live?
18. Without a mouth, how does the spiny-headed worm absorb nutrients?
19. The dentist drill is covered with tiny _______________ chips. Why?
15. What are the long, thin fibers visible on the 500x magnification of the toilet paper?
16. Explain how “Scratch and sniff” paper works.
17. What is visible on the 35x magnification of the mascara brush?
18. The wings of most moths are covered with ___________________.
Using any available resources answer the following questions:
19. Who is Robert Hooke and what contribution did he make to microscopy?