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The cult of Stalin
EduBook Organización
2011 visitas
Our love, our loyalty, our strength, our hearts, our heroism and our lives belong to you; take them, great Stalin! (…) Men and woman of all ages and all nations will say that your name is the most…
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The components of air
EduBook Organización
1 lo usan

1793 visitas
2.1. Air: a mixture of gases Air is made up of a mixture of gases. The main gases are nitrogen and oxygen. Other gases such as water vapour, carbon dioxide and ozone are present in smaller quantities.…
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How to convert millilitres to litres and vice versa
EduBook Organización
1993 visitas
We use the same method to convert volume as we use to convert mass. To convert from millilitres to litres, we divide by 1000. If a bottle contains 200 ml of water, its volume in litres is: 200 / 1000 =…
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How mixtures are separated
EduBook Organización
2002 visitas
Evaporation. During evaporation, the liquid evaporates and the solid crystallises. Salt is separated from seawater at a salt factory using this method. Filtration. In filtration, the mixture is poured…
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Final Autoevaluation 1.02 - Plant nutrition
EduBook Organización
1984 visitas
Graph a shows how the size of the pores in the stomata changes when a plant is exposed to light. Describe the changes: ➞ At... o'clock the pores measure... By... o'clock they... bigger/smaller…
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Learn. Reading graphs
EduBook Organización
1983 visitas
Graphs and charts are helpful tools in geography because they provide us with a lot of information very quickly. It is very important to be accurate and precise when reading a graph, and to explain as…
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Complete. Atmospheric conditions
EduBook Organización
1982 visitas
Complete the text with the missing words: The weather describes the conditions of temperature, humidity, atmospheric , wind and cloud in a particular place at a particular time. Atmospheric pressure is…
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Changes of state
EduBook Organización
1980 visitas
2.1. Changes of state of water Water is the best known example of a substance that occurs in the three states. Changes of state are caused by the action of heating or cooling (or changes in pressure).…
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Discussion - Go back to the text
EduBook Organización
1990 visitas
Work with a partner. Discuss these questions. When he saw Juliet, Romeo fell in love with her immediately. Why did he forget Rosaline so quickly? Juliet is nearly fourteen years old. There are two weeks…
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Did you know...
EduBook Organización
1965 visitas
Climate change is characterised by a rise in global temperatures and an alteration of winds and precipitation. It includes the melting of polar ice and glaciers, which causes a rise in sea levels,…
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