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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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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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Reading
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When they go back home in the evening Colin’s doctor is waiting for him and Mary. ‘Don’t stay outside for a long time,’ says the doctor. ‘You must be careful, Colin, because you’re very…
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Check. Test yourself
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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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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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Comprehension - Exit Test
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Are the following sentences true or false? A cyclone picks up Dorothy’s house and takes it into the sky. Dorothy meets the Good Witch of the North in the Land of The Winkies. The Scarecrow is afraid…
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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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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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End-of-unit activities - Matter: Mass, Volume and Density
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All objects are made up of matter. As a consequence of this, they have mass, occupy a certain volume and have a certain density. Mass, volume and density are magnitudes. This means they have values…
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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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