لینک دانلود و خرید پایین توضیحات
فرمت فایل word و قابل ویرایش و پرینت
تعداد صفحات: 2
In the name of god
WATER, WATER EVERY WHERE
A- Where does all the water come frome?
There is water a bore our heads, in the clouds. Most of the earth is covered by the sea. Even the land is wet for six miles down.
B- Most of your body is made of water. The paper you are reading from has some water in it. One tenth of a wooden chair is water. Even well- aired clothes have some water in them.
C- There was no water when the earth was being formed. But there were many kinds of gases. Two of these gases were oxygen and hydrogen.
D- The great heat united these two gases. Together they formed vapour- water in the form of gas. Then the earth began to cool. The vapour changed to a liquid. The water of our world had been made. It has been on earth since the world began. Each drop has a history of millions of years.
E- Think of one drop of water. It may have been fifty miles up in the sky. Perhaps it has spent a million years six miles down in the ground.
F- water travels a great deal. It moves in rivers to the sea. From the sea it may rise as vapour. Up in the sky it goes. There it may change into thiny droplets. The droplets gather in a cold. As the droplets cool, they from larger drops. The drops fall as rain. Some drops fall into the sea ro into rivers. Others fall on the land and soak into the ground.
G- Living things suck up water from the ground. It be comes part of them. The water of the world is always on the more. It has to be busy, to keep us alive.
H- The vapour in the air shields us from the sun. it stops the worst heat of the sun from reaching us. Without it, our blood would boil.
I- without water, all living things on earth would die. Without it, we would never have been born.
Puzzle:
1. life story
2. perids of 365 days
3. tiny spots of water
4. larse streams of water
5. one kind of sas
6. soil; land
7. world
8. at no time
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