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Nivel educativo
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Tipología
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Tipo de medio
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Energy can be converted from one form of energy to another. For example: Electrical energy is converted into heat energy by heaters and cookers, and into light energy by lamps. Electrical energy can…
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Investigate - Heat and temperature
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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End-of-unit evaluation - Heat and temperature
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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End-of-unit evaluation - Our planet Earth
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The Universe is made up of millions of galaxies. Our galaxy is called the Milky Way. It contains millions of stars, including the Sun. The Earth and seven other planets orbit the Sun. Together they form…
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Renewable energy sources
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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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Check. Test yourself
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Remember what you have studied in this section and answer the questions: What is the difference between binary fission and budding? What types of asexual reproduction are often seen in plants? How do we…
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Check. Test yourself
EduBook Organización
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Remember what you have studied in this unit and answer the questions: Are average velocity and instantaneous velocity the same? When? Why? What effects do forces produce? Give several examples of these…
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Remember - Energy
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We need energy to move. Humans get energy from food. Machines get energy from petrol or electricity. The Sun is a natural source of energy. We call the Sun a renewable energy source because it is…
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Understanding the text - Excalibur
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Arthur rode away with Merlin and said, ‘I broke my sword during the fight with Sir Pellinore. I am king because of that sword. I must have another sword.’ ‘Come with me then,’ said Merlin.…
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Activities - Spain
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Spain is in the south west of Europe. It includes most of the Iberian Peninsula, the Balearic Islands, the Canary Islands and the cities of Ceuta and Melilla in North Africa. Spain has borders with…
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