1 lesson 4عرض تقديمي1 unit
TRANSCRIPT
Unit 1 Lesson 4
21 / 10 / 1432
Name of an OceanName of desert
Name of country
Tiny drops of water mix with air and become clouds
If the water in the clouds are too heavy
it falls to the earth again
About 4/5 goes directly back into the sea
In the land The water can
be used by living things
Sources of drinking
Water
2-Reservoirs
To provide drinking
water all year round
Rain water drains under the earth
surface and collect in
Water under the Sahara Desert in North Africa has lain there for
25,000 years
Other under ground water doesn’t
lie in one place but moves slowly
downhill over hard rock
The largest source of fresh water is in Antarctica
But it is unusable because1-it is remote2-it is in the form of ice
In UK people drink a small percentage of the
water they use . Each person use about 180
liters of water per day
Water is used in industry for variety of purpose
Water is used in making
cultivation irrigation
- All year round – atomic – bore-hole – crop– cultivation – dam– dish – downhill– drain – drop– evaporate – mention– nearly – power station– precious – rainwater – remote – reservoir – salty – underneath – variety
:vocabNew
Where does most rain fall?Where is the largest source of fresh water?What are the different uses of water?
Water