Учебно-методическое пособие по английскому языку для вузов. Кислякова Н.В - 10 стр.

VI. Insert prepositions where necessary.
1. Elements are represented ... chemical symbols.
2. Each element is made ... atoms.
3. Matter is composed ... one or more elements.
4. A chemical unit can`t be broken ....
5. An acid releases hydrogen ions when mixed ... water.


VII. Which words on the right side can combine with the word on the left side?

                               1. element
water                          2. solution
                               3. substance
                               4. process


                               1. unit
chemical                       2. storage
                               3. reaction
                               4. symbol


                               1. solution
living                         2. acid
                               3. sentence
                               4. cell

VIII. Ask questions to which the italicized words are the answers and answer
them working in pairs.
1. Matter is something that has a mass and takes up space.
2. Each element is represented by a chemical symbol.
3. The element has a set of properties that distinguishes it from other elements.
4. The formation of a solution is a physical change.
5. There are two kinds of substances: soluble and insoluble.




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