Сборник задач по подготовке учащихся к международным исследованиям timss и pisa

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ПИЗА ДАЙЫНДЫ0 ТАПСЫРМАЛАРЫ қазақша

Task 5. The alcohol

Task 4. Acid rain
One of the main causes of acid rain, is that ...
A. acid waste from chemical plants merge into the river.
B. acids used in chemical laboratories, evaporate into the air.
C. The gases formed during the combustion of coal and oil, are dissolved in
water contained in the atmosphere.
D. gases produced during operation of air conditioners and refrigerators into the
atmosphere.
Task 5. The alcohol
Aidana got home from work. Entering the house, she rushed into the room,
because she felt a sharp smell of alcohol. Upon entering the room she saw a bottle
lying and cat. In the bottle was still 20 g content (this is half of what it was), and the
cat lying on the floor, like a big white bun, legs spread wide, and continuing to lick
the floor.
Question. How many grams of alcohol a cat licked off the floor, if its share in
cologne - 96% (evaporation neglected)?
A.19,2 g 100% alcohol.
B.29,6 g 100% alcohol.
C.16,4 g 100% alcohol.
D.12,2100%alcohol.
Task 6.
Light travels a distance of about 8 minutes from the Sun to the Earth. You watch
the sunrise at exactly 5:00. At what time you would have seen the same rise, if the
light propagated instantaneously?
A. In the 4 hours 52 minutes.
B. At 5 o'clock sharp.
C. 5 hours minutes.
Task 7

130
We note that in recent years, the weather began to change significantly: the
prolonged winter, late spring, cool summer.
What problems could cause global cooling?
Task 8
Match the traveler's name, and they made the discovery.
Table 1.
Last name of traveler
Opening
A.Tasman
The first trip around the world
Vasco Da Gama
discovered New Zealand and the east
coast of Australia.
James Cook
I discovered the island, which we call
Tasmania
F. Magellan
First discovered the sea route to India

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