Stem MICROSCOPE Bedienungsanleitung Seite 6

3. Carefully place the cover slip over it by touching one edge of the cover slip to
the slide and then gradually lowering the rest of the slip. The idea is to flatten
the liquid without trapping any air bubbles under the cover slip.
4. If your specimen is not super thin, wrap a piece of tape around the slide on either
side of where the specimen will be, but do this BEFORE the water is dropped onto
the slide. The extra thickness of this tape will raise the cover slip just slightly.
You may have to practice a few times to figure out just the right amount of liquid
to use. If you have too much, the cover slip will just float on top and not flatten the
specimen. Too little, and the cover slip might squash the specimen.
Wet mount slides typically last 15–30 minutes before drying out. You can extend that
time to a few days by sealing the edges of the cover slip. Lightly scrape the edges of
the cover slip over a small amount of Vaseline petroleum jelly before placing it over
the specimen, jelly side down. Press very lightly to seal the slide.
Good things to look at with wet mount slides
Plant material, like leaves, onion skin, flower petals

Mold spores from bread, cheese, or fruit

Celery or banana strings

Gills from the underside of a mushroom

Fibers like thread or yarn

Dry Mount Slides
The procedure for making dry mount slides is much the same as for wet mounts.
1. Use a toothpick or tweezers to place your specimen in the center of the slide.
You only need a small amount of your specimen—just enough to fit under the
cover slip.
2. Careful place a cover slip over your specimen to flatten it out. There is no need to
worry about air bubbles, so you can just drop the cover slip onto the specimen.
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