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Mostrando resultados de 693
  • Before you start - Machines and structures | Recurso educativo 585444

    Before you start - Machines and structures

    EduBook Organización

    • 3231 visitas

    Didactic objectives Identify the basic characteristics of electrical current, conductors and insulators. Identify the parts of an electrical circuit and draw a diagram with the correct symbols.…

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  • Metals | Recurso educativo 565730

    Metals

    EduBook Organización

    • 2983 visitas

    Metals are materials that conduct heat and electricity. Some metals occur naturally, such as gold and silver. The majority of metals, however, are obtained from minerals called ores. For example,…

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  • Complete - Remember | Recurso educativo 525846

    Complete - Remember

    EduBook Organización

    • 2870 visitas

    Complete: Energy is what makes objects move, or change temperature or . Sources of energy can be like the Sun or the wind, or , like coal and oil. Electricity travels to our houses, offices and…

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  • Video: Nuclear Power | Recurso educativo 38078

    Video: Nuclear Power

    Esl video Organización

    • 3977 visitas

    This 1 minute video explains how water is heated to generate steam and then electricity in a nuclear power station. It focuses on the 3 water loops and doesn't go into details about nuclear fission.…

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  • Body and Brain (videos) | Recurso educativo 22987

    Body and Brain (videos)

    PBS Kids Organización

    • 2 lo usan
    • 3654 visitas

    Collection of videos for young students in relation with human body and brain. There are videos about: Body Electricity, Bogs, Bone Regrowth, Breakfast Science, Double Dutch, Exercise and Memory, Glo…

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  • The resistance of a wire and its dimensions | Recurso educativo 41321

    The resistance of a wire and its dimensions

    Tiching explorer Organización

    • 3071 visitas

    In this interactive simulation students can vary the material (copper, iron or tungsten), the lenght and the cross-section of a conductor and obtain the overall resistance. From here they can infer the…

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  • Important materials | Recurso educativo 565082

    Important materials

    EduBook Organización

    • 2319 visitas

    There are many materials that are very important and useful. 6.1. Metals Metals are common materials that are extracted from minerals. They are used to conduct electricity, build buildings and make…

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  • Unit 5: The Atmosphere | Recurso educativo 565900

    Unit 5: The Atmosphere

    EduBook Organización

    • 2253 visitas

    Acid rain (n): rain or snow which are acidic due to the presence of secondary pollutants. air pollution (n): when the composition of the air changes due to the presence of contaminants. aurora borealis…

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  • Complete - Remember | Recurso educativo 526039

    Complete - Remember

    EduBook Organización

    • 2255 visitas

    Complete: In our great-grandparents' time, houses did not have . They used oil lamps. Most children left when they were 10 or 12, and went to work. In our grandparents' time, flats had…

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  • Match. Electric motors and alternators | Recurso educativo 585458

    Match. Electric motors and alternators

    EduBook Organización

    • 2230 visitas

    Do these sentences refer to alternators or electric motors? It transforms electrical energy into kinetic energy. The electrical current makes a magnet on an axle move. The spinning of the magnet near a…

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