OSNOVNA ŠKOLA
“IVO ANDRIĆ”
BELGRADE, SERBIA

Stomata

We took a leaf from a plant in our classroom and lacquier it with transparent varnish. We waited for it to dry and then we removed a part of the dried paint (lacquier) and put it under the microscope. We found the stomates and took picture of them.

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Red rose experiment

For MicroGlobalScope we did an interesting experiment with rose petals and sulfur. We put a little bit of elemental sulfur in a porcelain cup and inflamed it. Next to inflamed sulfur we put one red rose petal and covered all of that with a glass.

After ten mintes we took a glass of and saw changes on rose petal. Instead of red it became pink. We put one petal under a Miscope and saw a bunch of white spots all over it which were caused by sulfur-dioxide influence. This was very interesting and taughtful experience.

Metal after 15 days

We left metal wire for two weeks in water. The water had a foul odor. Today we have looked at it under a microscope Celestron (10x and more), and here are the results.

Some things in water

This we found by looking at the water from the aquarium through a microscope:


And this we recorded when we mixed drop of blood with water:

Metal today, but not gone tomorrow :)

We were working at inox steel wool on microscope Celestron (10x). After that we put the inox steel wool into the water. We waited for some time and until the next day and than we took it out of the water. At the end nothing happened. We think that particular inox wool won’t gather rust, because the inox wool is used for cleaning (with water).

Ionic bond

In our school we held one chemistry class during which we use microscope Celestron.

Goal: Students were noticing the structure of crystal by looking trough microscope and on creative way connected what they saw with their knowledge about chemical structure.

Students were separated in four groups and each group has its own task.

First group had a task to observe under the microscope difference compounds with ionic character: KMnO4, K2Cr2O7 and CuSO4. Magnification was 40 times.

Second group: They made crystal bar model of kitchen salt (NaCl) by using modeling clay and toothpicks.

Third group: They made Mg-chloride and Na-oxide puzzles by using cardboard.

Fourth group: They made comic whose characters (water, salt and nitrogen from the air) are explaining types of chemical bond between their atoms.

In the of the class all groups were presenting their results and were discussing looks of crystals. They came with a conclusion why some crystals have specific shapes.

Tooth adventure

Our friend pulled out a milk tooth few days ago. We cut the tooth into two pieces. Then, we observed it with miscope and found some layers.

Fiber hunt, part II

We continued our research on the same things like we did in the last research, but we used a different microscope (MiScope). We were watching at our clothes and our friend’s cheek and we spotted that his beard was growing. :)

Fiber hunt

Wool and hemp are the most common materials in our national handicraft. We watched through the microscope pieces of wool, hemp and our Serbian note. We saw that they were composed of lots of fibers. We think that it’s because they get on their strength. (Muscular cells are grouped for the same reason.)

Rain days

It started raining in Belgrade. It gave us an idea. We took a sample of the rain from a little pond near our school. We think that we saw algae cells.

Gretings from Belgrade

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Team from our school

First we went to the Botanic Garden. There we took photos of the Pancic omorika. Than we went to  Miljakovac forest which is near our school. We were looking for an insect called Trculjak, which is a protected species, but we didn’t find it. Then we took photos of plants. After that we went to the Topciderka River where we took samples of its water. That is all we did that day.

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Picea
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Picea branches
0121.jpg Picea leaves

Picea omorika is a coniferous tree species in the family Pinaceae which grows in a very   small area in the nature, but is widespread in the parks throughout Europe and North America. It is used as a Christmas tree. It was discovered on Tara Mountain in 1875 by the botanist Joseph Pancic . That is a protected species.

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Sparrow is the little brown bird.

A sparrow is a songbird that inhabits large parts of Europe and Asia. In Serbia they call it “a house sparrow”. It is a symbol of our town. Today it is the most common birds in the world. It lived only in Europe and Asia but people took it to the rest of the world. The total number of sparrows in Europe is between 130 and 270 million.

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Lichen
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Hellebore
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Spider web in a tree
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Liana

We went to  Miljakovac forest and took pictures of different plant species. We managed to find fern only in coniferous forest area, just like the hellebore. There were lots of ferns in heaps but they were rare. Unlike the ferns, hellebore were spread a lot. Fern was easy to spot because it was bright green.

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Water research

Although many people think that Belgrade lies on two rivers, there is a third one, the Topciderka. It is  small and very polluted because waste fromthe sewage is flowing into it. While we were watching the samples from the river through a microscope, we saw something and we think those are the algae cells. You could see it there. We microscoped  lymph from my finger. We saw a lot of white blood cells.
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Welcome Belgrade!

Hi Belgrade! Welcome to MicroGlobalScope. Can you find 5 different plants, flowers, insects, bugs, or materials that are unique or iconic to your area and take a photo of each one with your MiScope? Can’t wait to see what you find!