Some More Ideas for Observation
Children:
get adult’s permission before trying any experiments!
1.
Crystals: Place a few grains of dry salt or sugar on a slide to observe. Mix
salt with a spoonful of warm water in the
test tube
and then use the
plastic
dropper
to place a couple drops on a slide. Let it dry and observe the
re-crystallized salt/sugar.
2.
Shake some grains of pollen from a flower onto a
blank slide
.
3.
Hairs, including pet hair, or pieces of feathers, can be observed. Try
comparing hairs from various animals. You can use a small piece of tape at
each end of the hair to hold it on the slide.
4.
Observe fibers in different kinds of paper, printing from a newspaper or
typewriter. Look at the color in comics. Compare threads or fibers from
different types of fabric.
5.
Stagnant water from a pond will contain live organisms. Place a drop into the
well of a
concavity slide
for observation.
6.
Many specimens may look transparent under the microscope. It’s common to
stain them to make the cells show up better. Iodine is a common
stain
. Or try
soaking your tissue specimens in a solution of ordinary food color
(included
—
add water to thin) for a couple of minutes to stain them. Use the
tweezers to pick up the “stained” specimen. Allow the “stained” specimen to
dry before using glue to mount it.
Caution:
Remember the stain will color
anything else it touches, not just your specimen, so be careful with furniture
and clothing.
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With the
My First Lab
TM
Duo-Scope
you have the ability to observe both
microscope slides and solid objects, such as plants, coins and insects. The key is in
the dual, cool LED illumination that provides both sub-stage and overhead lighting.
Battery power eliminates the need for electricity or power cords and allows for
portable use “in the field”. The
My First Lab
TM
Duo-Scope
combines two
separate applications into one fantastic package that promises hours of fun and
learning.
Magnifications
Total magnification is calculated by multiplying the eyepiece magnification
(always 10X) by the objective lens.
Objectives
“Compound” use
(lower lighting)
“Stereo” use
(upper lighting)
4X
40X
40X
10X
100X
100X
40X
400X
N/A
Note: the 40X lens is not suitable for use with the upper lighting due to the
focusing distance required. The lens must be too close to the specimen and
does not allow enough light to reach the specimen.
Specifications
•
10X Eyepiece
•
4X, 10X, 40X Objectives
•
Real optical glass lenses
•
Dual LED lights (above and below)
•
Dual focusing knobs
•
Disc Diaphragm
Dimensions: 4½" x 6½" x 11½" high; Net Weight: 1.95 lbs.
*Instrument is powered by 3 AA Batteries (not included)
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