Zielona Szkoła w Jastrzębiej Górze

Going to Zielona Szkoła is very popular between the student societies in Poland. This kind of trip has a lot of advantages: you can rest from your school and teachers but on the other hand you can learn many things, especially about the area you stay in.
That's why we - students of the second class in 12^th Grammar School in Łódź decided to spend a few days in this way. We chose Jastrzębia Góra which is a little town situated near the Baltic Sea.

The main reason for our trip was to learn about flora and fauna of ecosystems of the Baltic Sea. These are the results of our researches:

Nadmorski Park Krajobrazowy

It's the Park where waters cover the main area. They are not very salty and its depth is very small. The park is subdivided into

Calidris alpina

fourteen landscape reserves, which we can find a lot of interesting ecosystems in. These

VaVccinium uliginosus and Ledum palustre

are for example high peat, where Vaccinium

uliginosus and Ledum palustre live and also special meadow which occurs very rarely as an element of Polish scenery. It creates only on a peaty base, situated

low enough so it's sometimes flooded by the sea water. Observing this special kind of meadow we can find very rare birds species like, for example, redshank (Tringa totanus) or dunlin (Calidris alpina), and also plants Plantago maritima and trofilum fragiferum..

Moreover, besides birds and many kinds of plants, there are also mammals living in Nadmorski Park Krajobrazowy which are not often seen in nother parts of the Baltic Sea. These are seals and dolphins. Despite the fact that we couldn't see the seals in the wild, we

were able to observe them in seal zoo in Hel, where we could watch for a while those beautiful animals. There are six seals living in (fokarium): two of them are male (Balbin and Julek) and the other four are female (Unda Marina, Ania, Ewa and Agata)

Słowiński Park Narodowy

This Park had been registered in UNESCO

While we were wandering…

as a biosphere reserve. It comprises thirty-two kilometer long terrain of the coast

between Łeba and Rowy. The variety of organisms living there is really huge. These are above all birds. Spieces like (rybitwa), Black-headed Gull (Larus ridibundus), and even White-tailed Eagle (Haliaeätus albicilla) live in this place in the wild. Although, almost all of the trees

are coniferous, there are also deciduous but

it's mostly birch-trees. Despite the fact that our guide, who was with us for all the time, could tell us everything about animals and plants that live on the coast of the Baltic Sea near Jastrzębia Góra, we decided to do some researches on our own. We observed all of the organisms we saw on our way, especially how they live and deal with their problems in the forest, on the beach or near the dunes. For example we found a lot of interesting lichens, which, as we all know,

...and while we were resting together.

are bioindicators. While we were wandering in Słowiński Park Narodowy

we could see them

Moss and lichen found in Słowiński Parki Narodowy

on almost every tree, which is not very common, especially in big cities where the level of air pollution is high.

The gastropod which want to make new friends…

…and the one that's a bit shy

Although living in dunes is very hard for animals and plants, we managed to see some of them in their natural habitat. Obviously, the main problem was to not breach the structure of dunes. This could affect organisms adversely. The animals we found were mostly gastropods like Cepaea Nemoralis or Arianta Arbustorum.

As we were visiting the town situated near The Baltic Sea, we decided to examine sea water. At first it seemed to be rather difficult for us as we had never done it before. Fortunately we could count on our teachers' help. We were equipped with all things we needed. I must say that we inspected mostly physical properties like turbidity or taste. Here are the results:

Physicalchemical

examination of water

Description:

1. To make analysis of water take three samples (20 ml every)

2. We take samples from 3 different places distant 30 meters from each other.

3. To describe the samples use appropriate tables

4. While examining the hardness of water add a few pieces of soap to every sample, shake it for thirty second and then analyze them.

The analysis of information

1. Turbidity of water

0 - no turbidity

1 - little turbidity

2 - medium turbidity

3 - a lot of turbidity

2. Smell of water

0 - no smell

1 - very fainty smell

2 - fainty smell

3 - distinct smell

4 - strong smell

5 - very strong smell

3. PH reaction examine for 15 seconds

4. The taste of water

Value		Description
0		No taste
1		Very fainty taste
2		Fainty taste
3		Distinct taste
4		Strong taste
5		Very strong taste
Rodzaj smaku		Obecność substancji
Salty		NaCl
Bitter		MgSO4
Sweet		Organic substances
sour		Hydroxides

5. The hardness of water - reaction to the piece of soap:

0 - no froth

1 - little froth (deposit)

2 - medium froth (no deposit)

3 - a lot of froth

Opracowała

mgr Agata Bartoszek

nauczyciel chemii w XII LO w Łodzi

The results of our researches
The time the samples were taken	10^52 - 11^55
The depth where the samples were taken	5 - 40 cm
Air temperature	8,5^o- 14^o C
Water temperature	6^o - 8,5^o C
Water temperature after 10 minutes	6^o - 13^o C
Turbidity of water	from 0 to 2
Turbidity of water after filtration	from 0 to 1
Colour of water	colourless
Colour of water after filtration	colourless
Smell of water	from 1 to 3
Smell of water after 10 minutes	from 1 to 4
PH reaction of water	neutral
Taste of water	from 1 to 2
Taste of water after filtration	from 1 to 3
Hardness of water	from 0 to 2
Hardness of water after filtration	from 0 to 3

The graph of water temperature with regard to the distance:

The graph of the smell of water based on the results of our examination:

A number of samples with water that doesn't have smell	2
A number of samples with water that has very fainty smell	9
A number of samples of water that has fainty smell	9
A number of samples of water that has sharp smell	1
A number of samples of water that has strong smell	0
A number of samples of water that has very strong smell	0

The graph of the hardness of water based on the results of our examination:

A number of samples with no froth	2
A number of samples with deposit	12
A number of samples with little froth	7
A number of samples with a lot of froth	0

The graph of the turbidity of water based on the results of our examination:

A number of samples with no-turbid water	7
A number of samples with little turbid water	11
A number of sample with medium turbid water	3
A number of samples with very turbid water	0

Conclusions
1. Temperature of the baltic water	7*
2. Temperature of the water in samples after 10 minutes	9,3*
3. Turbidity of water	The water was slightly turbid
4. Turbidity of water after filtration	The water after filtration was less turbid than before
5. Colour of water	colourless
6. Colour of water after filtration	colourless
7. Smell of water in samples	The water had very fainty or fainty smell
8. Smell of water after 10 minutes	The water had very fainty or fainty smell
9. PH reaction	neutral
10. Taste of water in samples	The water had fainty or distinc taste (salty)
11. Taste of water after filtration	The water had fainty taste (salty)
12. Hardness of water	The water had medium hardness
13. Hardness of water after filtration	The water had medium hardness

* These are average values [^o C]

After arriving home we all wished we had spent in Jastrzębia Góra more time. We had there really great fun and will never forget this trip for sure.

To sum up, I would like to thank the teachers, who spent with us those five days:
Ms Lilianna Chojnacka (English teacher) and Ms Agata Bartoszek (Chemistry teacher), and also Ms Alicja Chełmińska (biology teacher), who equipped us with books and other materials.

Sprawozdanie przygotował uczeń

klasy II XII Liceum Ogólnokształcącego

im Stanisława Wyspiańskiego w Łodzi

Bartosz Wiernicki

pod kierunkiem mgr Alicji Chełmińskiej

Nauczyciela biologii.

Balbin is a seal found in 1992 by fishermen. Thank to the workers of the seal zoo Balbin is still alive.

Balbin to foka odnaleziona w 1992 roku przez rybaków. Dzięki staraniom pracowników fokarium udało się ją uratować.

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