MICROSCOPES
Part A: Microscope Tutorial
Web Resources
How to Use a Microscope Properly
Microbus: How to use a microscope
Parts of the Microscope: Powerpoint
Answer the following questions in your notebook. Respond in complete sentences.
1. Why do many biologists consider the microscope as one of their most valuable tools?
2. Describe the ocular lens and the objective lens in your own words.
3. Why is hte microscope we use in class considered a compound light microscope?
4. You are examining a cell on low power. You can see the cell membrane and nucleus. When you turn the microscope to high power, the cell became blurry and you can no longer identify any structures. What happened?
5. What type of microscope(s) do scientists use when they want to examine specimens that are smaller than those which can be seen using a light microscope?
6. Why are scientists unable to view living specimens with an electron microscope?
7. What is the different between magnification and resolution?
8. Describe the function of these parts of the microscope in a complete sentence.
a. Stage
b. Stage clips
c. Diaphragm
d. Coarse adjustment
e. Fine adjustment
f. Arm
g. Base
9. Describe the correct way to carry a microscope from one lab table to another.
10. You are absolutely positively NOT supposed to use the coarse adjustment once you have placed the microscope on high power. Why?
Part B
After answering all the questions, go to the following sites and practice your microscope skills.
Udel- Interactive Microscope
Virtual Microscope
In your notebook draw 2 circles appoximately the size of your fist. In each circle draw a microscope slide specimen at high power from the microscope websites. At the top of your circle, label the type of specimen you drew.
Web Resources
How to Use a Microscope Properly
Microbus: How to use a microscope
Parts of the Microscope: Powerpoint
Answer the following questions in your notebook. Respond in complete sentences.
1. Why do many biologists consider the microscope as one of their most valuable tools?
2. Describe the ocular lens and the objective lens in your own words.
3. Why is hte microscope we use in class considered a compound light microscope?
4. You are examining a cell on low power. You can see the cell membrane and nucleus. When you turn the microscope to high power, the cell became blurry and you can no longer identify any structures. What happened?
5. What type of microscope(s) do scientists use when they want to examine specimens that are smaller than those which can be seen using a light microscope?
6. Why are scientists unable to view living specimens with an electron microscope?
7. What is the different between magnification and resolution?
8. Describe the function of these parts of the microscope in a complete sentence.
a. Stage
b. Stage clips
c. Diaphragm
d. Coarse adjustment
e. Fine adjustment
f. Arm
g. Base
9. Describe the correct way to carry a microscope from one lab table to another.
10. You are absolutely positively NOT supposed to use the coarse adjustment once you have placed the microscope on high power. Why?
Part B
After answering all the questions, go to the following sites and practice your microscope skills.
Udel- Interactive Microscope
Virtual Microscope
In your notebook draw 2 circles appoximately the size of your fist. In each circle draw a microscope slide specimen at high power from the microscope websites. At the top of your circle, label the type of specimen you drew.