Bresser Junior 8851300000000, Operating Instructions Manual

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DANGER!
Be extremely careful when using the MicroCut, knife or scalpel.
These instruments are very sharp and pose a risk of injury.
Place the slices on a glass slide and cover them with another slide before
attempting to view them with the microscope.
5.3. Creation of your own preparation
Put the object to be observed on a glass slide and cover the object with a
drop of distilled water using the pipette (12).
Set a cover glass (available at a well-stocked hobby shop) perpendicular
to the edge of the water drop, so that the water runs along the edge of the
cover glass. Now lower now the cover glass slowly over the water drop.
6. Experiments
Use the following web link to find interesting experiments you can try out.
http://www.bresser.de/downloads
Microscope accessories can be found here:
http://www.bresser.de/P8859480
Now that you’re familiar with your microscope’s functions and how to pre-
pare slides, you can complete the following experiments and observe the
results under your microscope.
6.1. How do You Raise Brine Shrimp?
Accessories (from your microscope set):
1. Shrimp eggs
2. Sea salt,
3. Hatchery,
4. Yeast.
The Life Cycle of Brine Shrimp
Brine shrimp, or “Artemia salina,” as they are called by scientists, have an
unusual and interesting life cycle. The eggs produced by the female are
hatched without ever being fertilized by a male shrimp. The shrimp that
hatch from these eggs are all females. In unusual circumstances, e.g. when
the marsh dries up, the male shrimp can hatch. These males fertilize the
eggs of the females and from this mating, special eggs come about. These
eggs, so-called “winter eggs,” have a thick shell, which protects them. The
winter eggs are very resistant and capable of survival if the marsh or lake
dries out, killing off the entire shrimp population. They can persist for 5-10
years in a “sleep” status. The eggs hatch when the proper environmental
conditions are reproduced. These are the type of eggs you have in your mi-
croscope set.
EN