Answers

1. Answers

2. A Write the names of the elements. • Hg - Mercury • B - Boron • I - Iodine • K – Potassium  

3. B Use the word in brackets to make a new word and complete the sentence. 1. The DENSITYof water is approximately one gram per cubic centimeter.. 2. This element becomes EXPLOSIVE when mixed with air. 3. The atomic WEIGHTof oxygen is 15.9994. 4. This material can’t conduct ELECTRICITY.

4. C Use the words from the box to complete the text. Scientists had been producing hydrogen for years before it was recognized as an element. Written RECORDS indicate that Robert Boyle produced hydrogen gas as early as 1671 while experimenting with iron and acids. Hydrogen was first recognized as a DISTINCT element by Henry Cavendish in 1766. Composed of a single proton and a single electron, hydrogen is the simplest and most ABUNDANT element in the universe. It is ESTIMATED that 90% of the visible universe is composed of hydrogen.

5. D Choose the best alternative to complete the sentences. 1. The ___ of a metal is how shiny the metal is. a) malleability b) lustre c) conductivity 2. You should collect all the ___ before you conduct the analysis. a) samplesb) couriers c) examples 3. The suitability of a material to a particular job depends ___ its properties. a) from b) onc) at 4. The property of lasting a long time before wearing out is known as ___. a) density b) effectiveness c) durability

6. Part 2 Grammar A Put the verbs in brackets in the correct tense. 1. The classroom is empty now. Everybody has gone home. 2. I want to lose weight, so this week I am not eating lunch. 3. Have you ever been to Italy? 4. The house was very dirty because they had not cleaned it for weeks. 5. You look very tired. Have you been running? 6. Now she understandsthat she can't ignore this problem.

7. B Choose the best alternative to complete the sentences. 1. That sounds ___, but is it true? a) interest b) interesting c) interestingly 2. Mike and Jack ____ be neighbours when they lived in London. a) use to b) used to c) would 3. I called the agency and I ___ find out more about the flat. a) had to b) could c) managed to   4. Before the telephone was invented people ____ write letters. a) had to b) must c) could 5. I ___last week but it looks horrible. a) cut my hair b) had my hair cut c) have cut my hair 6. What’s the capital of _ Netherlands? a) a b) / c) the

8. C Change these sentences into the Passive. 1. They will arrest the kidnapper. The kidnapper will be arrested. 2. They show this commercial on MTV. This commercial is shown on MTV. 3. The light went out when they were serving the meal. The light went out when the meal was being served. 4. They have told him to leave. He has been told to leave.

9. Part 3 Vocabulary A Use the appropriate phrasal verb ... take up get across get on set up get round to 1. I don’t get on with my neighbours. We often have arguments. 2. I must tidy my room. I never seem to get round to it. 3. The doctor advised him to take upyoga.

10. B Use the word in brackets to make a new word and complete the sentence. 1. My sister is very ambitious. 2. Their explorationled them into the deserts of central Asia. 3. The most dangerous chemicalproduced by cars is carbon monoxide.

11. C Choose the best alternative to complete the sentences. 1. It’s dangerous to cross a street outside a ___ crossing. a)commuter b) pedestrian c) bitter 2. Most ___ use a tape measure. a) tailors b) relatives c) burglars 3. How often do you use public ___? a) traffic b) transport c) travel 4. There are lots of __ of cars over buses. They are faster and more comfortable. a) increase b) advertisements c) advantages

12. Grading scale • 6→ 51% - 60% 21.5 – 25 • 7 → 61% - 70% 25.5 – 29.5 • 8 → 71% - 80% 30 – 33.5 • 9 → 81% – 90% 34 – 38 • 10 → 91% - 100% 38.5 - 42