Vocabulary work

1. Find synonyms or antonyms among the words given in italics in the text and name them. Be careful as the verbs are used in different forms

2. Fill in the table with the missing part of speech. Use the text. Write out 3-4 sentences from the text where these words are used.

Noun	Verb
	to break
discover
	to define
dismissal
	to remove
correspondence
	to publish
release
	to prove
implication

3. Make up word combinations matching the words of two columns. Use one word from each column once only. Think of 4 sentences where these expressions can be used.

to begin	dismissal
to follow	one’s way
to flee	via correspondence
to avoid	conclusion
to make	implications
to collaborate	collaboration
to grasp	abroad
to come to	Fermi’s work

4. Fill in the blanks using suitable prepositions.

1. She also fell … the Nazi definition of a Jew.

2. The task fell … Otto Hahn.

3. They were inspired … his results.

4. They kept … working.

5. He was urged … by his colleagues.

6. The world was … risk.

7. He closed … on the secrets of fission.

8. She crossed the Dutch border … the help of her colleagues.

9. Nuclei split … lighter elements.

10. Hitler’s rise … power forced Jewish scientists leave Germany.

5. Replace the word in italics with a suitable word from the box.

properties	divided	repeat	mistakes	number
fast	society	researched	made	created

1. They jointly investigated radioactive substances.

2. He managed to reveal some qualities of gamma rays.

3. We began a series of experiments.

4. She was forced to do it.

5. The nucleus of uranium is split into nuclei of other elements.

6. He coined a new term.

7. The community soon learnt the news.

8. There are a lot of spelling errors in his report.

9. They managed to replicate his results.

10. She watched a rapid release of excess neutrons during the reaction.

Follow-up activities

1. In pairs, discuss the information given in the text.

2. Make up a short report based on the text. (Presenting only key ideas).

3. Find some additional information about:

• Lise Meitner,

• Otto Hahn,

• Fritz Strassman,

• Robert Frisch,

• Robert Oppenheimer

and prepare reports describing their scientific career.

4. Write an essay on a contribution made by any of the above mentioned scientists.

Text b fission and the first reactors

Pre-reading tasks

1. The text you are going to read is headlined “Fission and the First Reactors”. In your opinion, what does it run about?

2. Think of 4-5 questions the answers to which you expect to find in the text. Write them down. (Which of them did you manage to answer after reading the text?)

Reading

Read the text and fulfill the tasks after it.