Answer the following questions.
1. In what states does water exist in nature?
2. What are the water properties at room temperature?
3. Why can water be called the universal solvent?
4. What is the most common water phase?
5. What structure does the solid phase of water take?
6. Characterize the gaseous state of water.
7. Where does a supercritical fluid occur in nature?
Give English equivalents of the following words and word combinations from Text 1B.
Наиболее хорошо распространенное соединение, жидкость без вкуса и запаха, с голубым оттенком, нерастворимые в воде, необходимый для жизни на Земле, состояние вещества, укрупненный кристалл, прозрачное облако, мельчайшие капли, сверхкритическая среда, гидротермальные источники, вулканический шлейф, сокрушающая сила, экстремальные глубины.
Read the sentences and choose the correct words.
1. The wall was durable / brittle, so it cracked easily.
2. The architect installed a(n) opaque / transparent panel to let in more light.
3. The flexible / rigid sealant can be squeezed into small spaces.
4. The door is heavy / lightweight, so one person can easily carry it.
5. The function / impression of a water tap is to provide water.
6. The contractors installed wooden partition / siding on the exterior.
7. If a shape has only three sides, it is a diamond / triangle.
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