Question

microscope parts and use worksheet
name period

1. explain an important thing to remember as you turn the high - power objective into place.
2. what should you always remember when you use the coarse adjustment?
3. under what conditions would you adjust the diaphragm?
4. what should you always remember when handling microscope slides?
5. what is the purpose of the stage clips?
6. in terms of your eyes, what should you try to learn as you use the microscope?
7. what are the two parts used to carry the microscope?
8. what is the purpose of the coverslip?
9. what is the objective lens used to locate the specimen and first focus?
10. what are the chemicals called that are sometimes used to make the specimens visible?
11. what should you do if the high power objective lens touches or breaks the coverslip?

Explanation:

1. When turning the high - power objective into place, remember to use the fine adjustment knob only to avoid crashing the lens into the slide.
2. When using the coarse adjustment, always start with the lowest power objective and move the stage up while looking from the side to avoid crashing the lens into the slide.
3. Adjust the diaphragm when the light is too bright or too dim to control the amount of light passing through the specimen.
4. When handling microscope slides, always hold them by the edges to avoid getting fingerprints on the glass surface which can affect the view.
5. Stage clips hold the slide in place on the stage of the microscope.
6. Try to learn to use both eyes when looking through the microscope to avoid eye strain.
7. The arm and the base are used to carry the microscope.
8. The coverslip protects the specimen and the objective lens, and also helps to flatten the specimen for better viewing.
9. The low - power objective lens is used to locate the specimen and first focus.
10. Chemicals used to make specimens visible are called stains.
11. If the high - power objective lens touches or breaks the coverslip, immediately stop using the coarse adjustment, switch to a lower power objective, and check the slide and lens for damage.

Answer:

1. Use fine adjustment only.
2. Start with low power, move stage up while looking from side.
3. When light is too bright or dim.
4. Hold by the edges.
5. Hold the slide in place.
6. Use both eyes.
7. Arm and base.
8. Protect specimen and lens, flatten specimen.
9. Low - power objective lens.
10. Stains.
11. Stop using coarse adjustment, switch to lower power, check for damage.