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Complete - Remember
EduBook Organización
- 2720 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
Esl video Organización
- 3775 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)
PBS Kids Organización
- 2 lo usan
- 3579 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
Tiching explorer Organización
- 2924 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
EduBook Organización
- 2218 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
EduBook Organización
- 2183 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
EduBook Organización
- 2174 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
EduBook Organización
- 2150 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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Non-renewable sources of energy
EduBook Organización
- 2077 visitas
4.1. Coal Coal is a solid, black rock. It is the fossilised remains of huge masses of vegetation buried under the ground millions of years ago (figure 1). It is used mainly as fuel in coal-fired power…
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