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The weather
EduBook Organización
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The layer of air that surrounds the Earth is called the atmosphere. All the weather on the Earth happens in the atmosphere. Changes in the atmosphere cause different types of weather. People who study…
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Check. Noise pollution
EduBook Organización
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Remember what you have studied in this section and answer the questions: What are the effects of continually listening to very intense sounds? Why do you think very intense sounds cause the effects they…
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Climate change - Society and the environment
EduBook Organización
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What is climate change? Climate change is the combination of changes in the Earth’s climate because of an increase in the planet's temperature. Examples of these changes are rising sea levels or…
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Introduction - Energy inside the Earth
EduBook Organización
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The inside of the Earth is extremely hot and material that rises up from it is responsible for many of the geological phenomena seen on the surface. The Earth's energy is evident when volcanoes…
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Introduction - Obtaining and using energy
EduBook Organización
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Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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Renewable energy sources
EduBook Organización
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Energy sources that will not run out are called renewable energy sources. Some examples are the Sun, water and wind. The energy that we obtain from renewable sources is called clean energy because it…
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End-of-unit activities - Obtaining and using energy
EduBook Organización
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Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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Remember - Obtaining and using energy
EduBook Organización
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Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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Comprehension check
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Choose the correct letter to fill in the gaps. For years Dorian could not free himself from the of the book Lord Henry had given him. His mysterious absences were the cause of strange among his friends.…
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Unit 8: Matter and its properties
EduBook Organización
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Binary compound (n): a chemical compound which is made up of two elements. bind (v, past and past participle bound): to stick together or cause to stick together, for example through chemical bonding.…