Atoms and atomic theory
tải về 0.52 Mb. Chế độ xem pdf
|
English-for-Chemistry-1-After-lesson-1
- Điều hướng trang này:
- Grammar note
- Lesson 5. STATES OF MATTER 5.1 Listening: The three well-known states of matter: solids, liquids, and gases
- …(2)…, …(3)… and …(4)….
| Q2. - Find sentences containing the comparative clause in the text.
- Make 5 sentences with the comparative clause. Q3. - Make groups of students. - Each group prepares 5 questions. - Each group takes turn to ask and answer questions from the other group. Grammar note: Comparative clause - Short adj/adv: Adj/adv + er + than - Long adj/adv: More/less + Adj/adv + than English in chemistry 1 – 2017 TS. Nguyễn Tuyết Phương – TS. Trần Thu Phương 14 Lesson 5. STATES OF MATTER 5.1 Listening: The three well-known states of matter: solids, liquids, and gases Complete the paragraph by filling the blanks In this video you are going to learn what the …(1)… states of matter are, some examples of each state of matter, the characteristic properties of the three states of matter. The three states of matter are …(2)…, …(3)… and …(4)…. Let us look at solids. An example of a solid is your computer. The properties of solids depend on how the particles in solids are packed. In a solid the particles are closely …(5)… in fixed positions and cannot move anywhere. So solids are rigid, cannot be squashed to compress, have a fixed shape and a fixed …(6)…. They cannot flow. Now let us look at liquids. An example of a liquid is …(7)…. Just as with solids, the properties of liquids depend on how the particles in liquids are packed. In a liquid the particles are again closely packed but not as closely packed as in solids. So this means the particles in liquids can move around each other. So liquids are not …(8)…, but because their particles are closely packed as in solids, they cannot be squashed to compress. They do not have a fixed shape, but they do have a fixed volume. Beware with that one, as many students think because liquids do not have a fixed …(9)…, they do not have a fixed volume either. But they are wrong. If someone orders a pint of beer, they cannot make it two pints but pouring it in two different containers. As you know liquids …(10)… flow. Finally, let us look at gases. An example of a gas is …(11)…. This is the gas in party balloons because it is less dense than air and unreactive. Again as with solids and liquids, the …(12)… of gases depend on how the particles in gases are packed. Unlike solids and liquids, the particles in gases are not closely packed. They are far apart. As a result, gases are not rigid and can be …(13)… to compress. They do not have a fixed shape nor fixed volume. They fill the whole space they are in. tải về 0.52 Mb. Chia sẻ với bạn bè của bạn:
|