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Learn... Measuring instruments
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To measure a magnitude, a suitable measuring instrument is required. These instruments can be: Analogue. The measurement is obtained using a scale made of a series of divisions marked with small marks.…
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True / False. Maritime and air transport
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Are these sentences true or false? El Prat Airport in Barcelona is the largest airport in Spain. Barajas Airport in Madrid is one of the most important airports in Europe. Air transport is growing in…
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Final self-evaluation 07 - Ancient History
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Complete these paragraphs with the correct words: farming gold crafts mining fields buildings workers fruit roads granary blacksmith's olive owners quickly rich wheat A villa consisted of a number…
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The third conditional
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‘It would never have happened if I had not met you.’ ‘It would never have happened if I had not met you.’ The third conditional is used to talk about something in the past which cannot be…
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Analyse. The history of weighing scales
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The history of weighing scales Scales, or balances, have been used since ancient times to weigh goods for trade. The design of weighing scales has changed over the years. Each new design tried, firstly,…
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Match. 19th century artistic trends
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Match each definition with the correct artistic trend: It was concerned with faithfully describing the reality of the age. Its aesthetic was above all elegant and refined. It used forms inspired by…
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Examples of deforestation
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On the peninsula of Indochina, millions of hectares of forest have been destroyed for timber, which is used to make furniture. In the Caribbean and the Amazon jungle, the deforested area represents a…
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Non-renewable energy sources
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Non-renewable sources of energy exist on the Earth in limited amounts. oil, coal, natural gas and uranium are all non-renewable. If we use too much of these energy sources, we will eventually run out of…
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Self-assessment T7 07 - The 20th century and the world today
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Are these sentences true or false? Frank Lloyd Wright was an artist who used the Cubist style. Most wars and conflicts today affect some of the world's poorest populations. The first democratic…
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A microscope
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A microscope is an instrument that magnifies very small objects, like cells, so that we can observe and study them. The main part of this instrument is a metal tube with a lens at each end: the eyepiece…
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