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What is water exactly?

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What is water exactly?. Chemistry teachers say: The water is H 2 O. Boatmen say: …”Water is the way between two continents.”…. Both of them are true. But in my opinion: …” Water is one of the most important elements in the world.”…. Because we cannot live without water.

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Presentation Transcript
slide4
Boatmen say:

…”Water is the way between two continents.”…

slide5
Both of them are true.

But in my opinion:

…”Water is one of the most important elements in the world.”…

slide8
Unfortunately because of the change of the climate the habitat of the water-fowls isn’t the same as it was.
slide11
nowdaysin the end of XXI. century

We can see the difference between theese pictures. Habitat of birds will change seriously. It will move about 550 km to north-eastward and it will become smaller.

slide13
But how? There are countless answers to this questions. (unfortunately)
slide14
1.: We always travel by car. Cars run on petrol and it is very harmful to the environment. It is a big problem. If we used solar powered cars this problem would disappear.
slide17
Because of these facts and many other causes the ozone layer is getting thinner and thinner and the greenhouse effect is getting more and more serious. All these cause the change of the climate.
slide18
Also in Hungary we can realise some very strange events.

We can find some bird species which come from other continents.

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They are the following.:

1.: Amerikai pettyeslile.

(Pluvialis dominica)

The American Golden-Plover

It is a small bird with a short strong beak and short legs. It is about twenty-five cm tall. It looks for its feed in the mud of lakes. It comes from North-America.

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American Golden-Plover

Amerikai pettyeslile

(Pluvialis dominika)

Juv.

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American Golden-Plover

Amerikai pettyeslile

(Pluvialis dominika)

slide22
American Golden-Plover’s eggs

Amerikai pettyeslile tojásai

(Pluvialis dominika)

slide23
2.: Énekes hattyú

(Cygnus cygnus)

Whooper swan

It is a big white bird with a long neck and short legs. It is about one hundred and fifty cm tall. It has a short yellow beak. It ”sings” like a horn. First it was in 2005 when a couple of this bird species could breed in Hungary. It comes from Asia.

slide24
Whooper swan

Énekes hattyú

(Cygnus cygnus)

slide25
Whooper swan

Énekes hattyú

(Cygnus cygnus)

slide26
Whooper swan

Énekes hattyú

(Cygnus cygnus)

slide27
3.: Wilson-víztaposó

(Phalaropus tricolor)

Wilson’ s Phalarope

It is about twenty-three cm tall. It has longer legs and a longer and sharper beak than the American Golden-Plover. It eats insects. Until it looking for them it bend down. It can swim.

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Wilson’ s Phalarope

Wilson-Víztaposó

(Phalaropus tricolor)

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Wilson’ s Phalarope

Wilson-Víztaposó

(Phalaropus tricolor)

slide30
Wilson’ s Phalarope

Wilson-Víztaposó

(Phalaropus tricolor)

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All these birds are rare in Hungary. The American Golden-Plover and the Wilson’ s Phalarope are migratory birds in Hungary. Sometimes it can be very nice for us when we get a sight of them. On the other hand it isn’t normal. They shouldn’t be here. What is more for these birds it is dangerous to ”travel” so much.