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Sunday, June 9, 2019

LAB #10 – Using a Microscope


LAB #10 – Using a Microscope

microscope is an instrument used to see objects too small for the naked eye. The science of investigating small objects using such an instrument is called microscopyMicroscopic means invisible to the eye unless aided by a microscope.  There are many types of microscopes, the most common and first to be invented is the optical microscope which uses light to image the sample.

      Problem

      How can we tell the difference between salt and sugar?

Hypothesis




Materials
Microscope
Salt
Sugar
Celery leaves
Various slides


Procedure

1.             Make observations of salt and sugar at different degrees of magnification. 
2.             Make observations of celery leaves at different degrees of magnification.
3.                                 Make observations of various slides at different degrees of magnification.

Results


Observations with no magnification

Salt
 Compare/contrast
Sugar





Observations at 40X magnification

Salt

Sugar





Observations at 100X magnification

Salt

Sugar





Observations with no magnification

Celery leaves
 Human hair
fingernail





Observations of various objects with 40X magnification


Celery leaves
Human hair
fingernail











Observations of various objects with 100X magnification


Celery leaves
Human hair
fingernail






Observations of various objects at 40 X magnification


Various slides
Various slides
Various slides








Observations of various objects at 100X magnification


Various slides
Various slides
Various slides









Observations of various objects at 100X magnification


Various slides
Various slides
Various slides








Analysis

1.         How did the microscope assist you in visualizing the various objects?

2.         Why does the microscope stage have a hole in it?

3.         Which parts of the microscope enlarge the image of the specimen?

4.         If the specimen appears blurry, what should you do first?

5.         Describe the correct way to carry a microscope.

6.         If you are looking at a slide with the objective lens on the 10X, what is the total magnification of the specimen?

Conclusion














1. Label the following parts of the microscope:
1.          Eyepiece lens
2.          Coarse Focus
3.          Fine Focus
4.          Objective lens
5.          Arm
6.          Stage
7.          Base







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