Сборник задач по подготовке учащихся к международным исследованиям timss и pisa
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Тимс,Пизаға дайындық
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- Task 5. The alcohol
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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 spreads a distance from the Sun to the Earth about in 8 minutes. You watch the sunrise at exactly 5:00. At what time would you have seen the same rise, if the light spreads immediately? A. At 4 o'clock 52 minutes. B. At exactly 5 o'clock. C. 5 o'clock 8 minutes. Task 7 131 We note that in recent years, the weather began to change significantly: the prolonged winter, late spring, cool summer. What problems could global cooling cause? Task 8 Match the traveler's name and his 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 discovered the island, which we call Tasmania F. Magellan The The first man who discovered the sea route to India жүктеу/скачать 3,47 Mb. Достарыңызбен бөлісу:
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