- How to use the microscope
- Pick up the microscope from the cabinet using two
hands. One hand on the neck and one hand supporting the base.
- Place the microscope on the lab bench with the
adjustments nearest you with a forearm distance from the edge of the lab
- Plug in the cord. And turn on the power.
- Be sure the lowest power objective is clicked in
- The stage is all the way up and turned a quarter down.
- Place your specimen on the stage and focus on low
- If appropriate move the medium objective into place
while watching the slide. Be sure you have enough room or you will scrape,
break the slide and lose your specimen.
- Focus with coarse adjustment and then without moving
the stage use the fine focus knob.
- Repeat for high power if appropriate.
- Draw your specimen and measure.
- Return low objective into place, and return the
specimen to the tray..
- Turn the power off, unplug and wrap the chord.
- Replace dust cover and carry to the cabinet using two
hands. One on the neck and one supporting the base.
- How to measure the size of images under the microscope
- See measuring microscope activity
- How to draw images
- When your specimen is focused clearly, you are ready
- Outline a quarter or small Petri dish very neatly in
- To the left of the circle label the total
magnification: Eyepiece (10X) x Objective( 4X, 10X, 40X) = 40X, 100X or
- Below the magnification label the specimen in neat
- Measure the length and width of the cell/organism and
label below specimen
- Using colored pencils, draw the cells/organism
clearly. You do not need to fill in the quarter. This is a waste of time.
You must draw at least 3 representative organisms on the slide or at least 5
-7 cells of a tissue.
- Label anything in the diagram of importance e.g. cell
wall, chloroplasts, nucleus etc…
If you or I cannot readily identify your drawings then they
are not good enough. These drawings are your study guides for lab practicum,
quizzes, tests and the final. You cannot take microscope slides home, and Google
images although excellent may not resemble the slides you had in class, SO your
drawings must be excellent. Drawings not meeting these expectations will get no
credit. If these are to be turned in redraw them from your journal to a blank