| Microscope Objectives
After reading pages 25-27, I can:
(terms)
- tell what
a microscope does.
- contrast a
light microscope and electron microscope.
- *contrast
magnification and resolution.
- give the
full name for the type of microscope used in a high school
science lab.
- state the
maximum magnification that might be expected from a compound
light microscope.
- describe
the purpose of stains to the microbiologist.
- name and
contrast the two types of electron microscopes.
- describe
the purpose of a cell culture.
- tell how a
scientist might use cell fractionation.
- name the
primary instrument (tool) used for cell fractionation.
After reading
Appendix D--"Use of the Microscope" (pages 1070-1071), I can: (terms)
1.
name the type of microscope used in most biology classes;
tell why it is called by this name.
2.
tell how the total magnification for a given objective lens is
determined.
3.
give the proper technique for carrying a microscope.
4.
tell which knob should be used to quickly raise or lower the stage
(or body tube, depending on the type of scope).
5.
give the name for the circle of light that can be seen when looking
through the eyepiece.
6.
describe the function of the diaphragm.
7.
tell why you should keep both eyes open while using the microscope.
8.
tell how to change the magnification of a microscope.
9.
name the object on which a specimen is placed for viewing on the
stage; name the smaller piece of plastic (or glass) used to cover
the specimen.
10.
describe how thin a specimen must be for viewing under the scope.
Antony van Leeuwenhoek and the Microscope (terms)
After reading the Techdirections Technology’s Past
article, “Antony van Leeuwenhoek and the Microscope” I can:
1. tell when van Leeuwenhoek made his first microscope.
2. name the country he was from.
3. tell what he did for a living (thus making him an amateur
scientist).
4. tell why he made his first magnifying glass.
5. describe the lens he made.
6. give the magnification of his early magnifiers; tell how
that compares to modern-day microscopes.
7. characterize the statement, “…van Leeuwenhoek invented
the first microscope…”
8. describe the involvement of the Royal Society (London) in
his work.
9. give three reasons why Leeuwenhoek was not considered a
typical scientist of his day.
To Read the Article, click on the thumbnail below....
"Focus on Science" Microscopes--Gateways to the Cell
(terms)
After reading the article, Focus on Science, Microscopes--Gateways to the Cell,
I can:
1. name the process of bending light (thus allowing magnification in a
microscope or telescope).
2. give the full name for the type of microscope you will use in high school
biology.
3. name the process where you "expose (a specimen) to dyes that react with some
cell structures but not others."
4. give the name for a photograph of an image formed with a microscope.
5. name "the property that determines whether small objects close together can
be discerned as separate . entities."
6. give the limiting factor of the property you named in the objective above.
7. give the simplest way to "describe" the wavelengths of light.
8. tell what acts as a lens in a Transmission Electron Microscope.
9. describe how a Scanning Electron Microscope "views" a specimen.
10. give the term (and symbol) for the unit of measurement that is 1/1 000 000
of a meter.
To read the article click on the thumbnails below.....

After reading the article, "THE MICROSCOPE", I can:
(terms)
1. give the name for someone that uses a microscope as a tool of science.
2. give the name for a curved glass-air surface that is used to bend light.
3. describe a novel use of lenses in the royal court that became fashionable in
the early days of microscopy.
4. give the name of the type of magnifier system that utilizes one lens to
magnify the image from another.
5. name the two lens systems in a microscope.
6. contrast a virtual and real image.
7. name the part of the scope that can be used to reduce the amount of stray
light passing through a specimen, thus reducing the amount of glare in the field
of view.
To read the article, click the thumbnails below....

After reading the article “The Microscope” from Wikipedia,
I can:
(terms)
- give the origin of the term “microscope.”
- name the science that involves looking at small
objects.
- tell where the first useful microscopes were
developed; give the occupation of the inventors.
- name the two types of waves microscopes use to create
images.
- name the most widely used type of microscope in
biology.
- name the type of lenses optical microscopes use.
- give the theoretical resolution of a high-quality
optical microscope.
- name the two wavelengths of light sometimes used (for
special purposes) in studying biological tissues.
- name the two variants of electron microscopes.
To read the article, click on the thumbnails below....

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