Edu Science M800X Manual De Instrucciones página 6

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M800x Microscope Set
The Brine Shrimp under the Microscope
The animal that hatches from the egg is known by
the name "Nauplius Larva." With the help of a pipette,
you can place a few of these larvae on a glass slide
and observe them. The larvae will move around in the
salt water by using their hair-like appendages. Take a
few larvae from the container each day and observe
them under the microscope. In case you've hatched
the larvae in a hatchery, simply take off the cover of
the tank and place the tank on the stage. Depending
on the room temperature, the larvae will be mature
in 6-10 weeks. Soon, you will have raised a whole
generation of brine shrimp, which will constantly grow
in numbers.
Feeding your Brine Shrimp
In order to keep the brine shrimp alive, you must feed
them. This must be done carefully, since overfeeding
can make the water become foul and poison your
shrimp population. The feeding is done with dry yeast
in powdered form. A little bit of this yeast every second
day is enough. If the water in the compartments of the
hatchery or your container turns dark, that is a sign
that it has gone bad. Take the shrimp out of the water
right away and place them in a fresh salt solution.
Warning! The shrimp eggs and the shrimp are not
meant to be eaten!
Experiment No. 7:
How does bread mold develop?
Object: An old piece of bread.
Put the bread on a slide and lightly moisten it with
water. Place the bread into a sealed container, and
keep it warm and out of harsh light. Within a short
time, the black bread mold forms. When the mold
takes on a white, shining appearance, observe it with
your microscope. It will look like a complicated mass
of thread, forming the fungus body, which is called the
mycelium. Each thread is known as a hypha. These
threads, or hyphae, grow like long, slim stacks, ending
in a small, white ball, called a sporcap. Inside the
sporcap is a spore that will eventually be released to
start new colonies of mold. With your microscope you
can watch this amazing transformation unfold.
Experiment No. 8:
Observing stem and root sections
Objects:
1. A celery stalk.
2. A carrot.
With an adult's supervision, cut several very thin
slices from the middle of the celery (a stem) and
from the middle of the carrot (a root). Make a "wet
mount" by placing a drop of water on the slide. Then
put the specimen on the water-covered slide, and
top with a cover slip. The water will help support the
sample. It also fi lls in the space between the cover
slip and the slide. Start by viewing them at the lowest
magnifi cation and then increase the magnifi cation for
more detailed observation.