3. Decide, whether the statements below are true or false:

1. Matter can exist in two physical states.

2. As a solid it has indefinite form and volume.

3. Matter is made up of very big particles called molecules.

4. Molecules in turn are made up of atoms.

5. The history of the atom goes back to the time of the Roman thinker Democritus.

6. At the beginning of the 19-th century scientists established the atomic theory of the structure of matter.

7. They found that the simple forms of matter were chemical elements which consisted of molecules.

8. An atom holds a tremendous force hidden in its tiny body.

4. Give the definition to the following words:

Matter, molecular, atom, particle, constitution, solid, liquid, gaseous.

5. Fill in the gaps using the following words and word-combinations:

1. Matter can exist in three physical states, namely…..

2. As a solid it has…..not easily changed by mechanical force.

3. As a liquid it has…., but being fluid it takes the shape of its container.

4. A gas has…..neither definite volume nor shape.

5. All matter - whether solid, liquid or gas – is made up of…..

6. Molecules in turn are made up of…., which are still…..

7. It was at the beginning of…that the scientists first established …..

8. They found that the simple forms of matter were chemical elements which…..

9. An atom holds a ….. hidden in its tiny body.

10. During years a number of…..have been developed.

11. The atom helps us to fly through the…..

12. Atomic energy is enabling scientists to study…. and other…..

6. Answer the following questions:

1. Can you name three physical states of matter?

2. Can you describe it as a solid, a liquid, a gas?

3. What small particles is matter made up of?

4. What smaller particles are molecules made up of in turn?

5. When did scientists establish the atomic theory of the structure of matter?

6. What did they find?

7. What kind of force does an atom hold in its tiny body?

8. What kind of help does atom have for people?

7. Translate the following sentences into Ukrainian:

1. I’ll have read the article about the protection of nature in Ukraine by this time tomorrow.

2. By six o’clock she’ll have made a report “Application of automation and cybernetics”.

3. They haven’t reached the bottom of the sea yet, but they’ll have reached it before darkness.

4. Will you have finished your talk about automation processes by two o’clock?

5. He hasn’t given the final answer yet, but he’ll have given it before you return.

6. We’ll have spent much money for building new purification systems at the plants by that time.

8. Use the verbs in brackets in the Future Perfect Tense:

1. I (to do) that work by six o’clock tomorrow.

2. She (to do) her homework by the time you come.

3. You (to make) a report by next Monday?

4. How many pages you (to read) by five o’clock tomorrow?

5. He (to do) all his preparations for the trip by the time they come.

9. Translate into English, using Future Perfect Tense:

1. Ми побудуємо багато очисних споруд до кінця наступного року.

2. Звичайно, до 10 години вона закінчить свою доповідь про доцільність

3. автоматизації в розвитку нашого суспільства.

4. Вони прочитають до кінця року три книжки англійською мовою про

найбільші ріки та озера.

5. Він завершить свою доповідь до першого грудня.

6. Я ще не написала твір на тему ”Флора і фауна-жертви забруднення”, але я напишу його до того, як ви прийдете.