1. Otto Hahn, Lise Meitner, Fritz Strassman made several key breakthroughs revealing secrets of nuclear fission. Can you give any information about these scientists? If nothing is known to you, what exactly would you like to learn about them? Think of 4-5 questions the answers to which you expect to find in the text below.
2. In your opinion,
- what is nuclear fission?
- what elements can be bombarded by particles to cause nuclear fission?
- what particles are used for bombardment of elements?
- what are the resultant products of nuclear fission?
3. The words of column A are given in the text. Match them with their definitions.
| A | B |
| fission | to increase the strength. |
| to coin | functions or duties of a censor. |
| self-sustaining | most notable, chief. |
| to amplify | to fasten or tie. |
| to strike | splitting or division, e.g. of the nucleus of certain atoms. |
| to bind | university teacher, professional scholar. |
| censorship | extra, additional |
| to replicate | able to keep up or maintain oneself. |
| proof | to hit ; give a blow or blows to. |
| foremost | to invent (esp. a new word). |
| excess | to copy, to reproduce, to repeat. |
| academic (noun) | evidence |