Microscope Basics - CGW-Life-Science

Microscope Unit Test
Section 1 Microscope Parts: Write the number of the parts of the microscope in the drawing by the
blank next to the part’s name.
________ Revolving Nosepiece
________ Ocular Lens
________ Coarse Adjustment Knob
________Objective Lens
________Stage Stop
________Light Source
________Stage Clip
________Body Tube
Section 2 Microscope Functions: Write the name of the microscope part in the blank next to its
________________________ Provides light through the slide
________________________ Keeps the stage from bumping into the slide
________________________ Lens closest to the specimen on the slide
________________________ Lens at the top that you look through
________________________ Holds the slide in place
________________________ Regulates the amount of light going through the slide
________________________ Holds the objective lenses
________________________ Platform where you place the slide
________________________ Moves the stage up and down to focus the specimen
________________________ Connects the eyepiece to the rest of the microscope
Section 3: Short Answer Questions
Directions: Answer all of the following questions in complete sentences.
1. How do you calculate the total magnification you’re looking at a specimen with? Give an example
to support your statement.
2. Explain why you begin viewing a specimen with the 4X objective lens and the stage all the way up.
3. Explain how you correctly put a cover slip on a slide. Why do you put it on that way?
4. Explain the proper way to put up a microscope when you are finished with it. Why is this
Part 4: Short Essay Questions
Directions: Choose three of the following four prompts to answer in paragraph form. Each of your
paragraphs must:
a) Start with a proper topic sentence that introduces your paragraph.
b) Include enough details to completely support your answer.
c) Have appropriate spelling, punctuation and grammar.
1. Explain the steps you take to correctly create a wet mount slide of a dog hair.
2. Describe the process of finding a specimen on a slide you have made, focusing it and increasing the
total magnification from 40X to 100X.
3. The microscope’s lamp is turned on, but you cannot see your specimen. Describe three things you
should check on to make the image totally focused and “crystal clear” so you can draw it.
4. Explain why each of the CORE values is especially important when using microscopes. Give
specific examples from class to support your statements.