Recursos educativos electricity página 12

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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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Energy
EduBook Organización
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What is energy? Energy makes objects move. It can also make objects change temperature or shape. Machines need different types of energy. For example, cars need petrol or diesel. We call these energy…
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Investigate - 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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What is sound?
Maria Pallarés Docente
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What is sound? Sound is a form of energy, just like electricity and light. Sound is made when air molecules vibrate and move in a pattern called waves, or sound waves. Think of when you clap your hands,…
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Check what you know about the recent past
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Check what you know about the recent past: What did people use to light their houses before electricity? What means of transport did Eloy use in the city? Describe two differences between David's…
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Non-renewable energy sources
EduBook Organización
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Non-renewable energy sources Coal Coal is a sedimentary rock because it is made up of the remains of plants and animals that died millions of years ago. We can extract coal by digging mines. When we…
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True/False. Work it out
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Copy only the true statements from the following list into your notebook and say why they are true: Coal and oil, as well as causing pollution, are running out and cannot be renewed. The water used in…
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Science and technology in today's world
EduBook Organización
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Important advances During the 20th century and the beginning of the 21st century, people made great advances in many areas of science and technology. These advances have improved the quality of life for…
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Machines
EduBook Organización
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Brakes. Vehicles have brakes to reduce speed or stop. Bicycles and cars have brakes. Machines. There are simple and compound machines. They make our work easier. Compound machine. Compound machines are…
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Complete. Energy
EduBook Organización
2540 visitas
Complete the sentences with the correct words: fuels deformations sources hot volume renewable Sun Heat thermal equilibrium up movements coal power On Earth, most of the energy on earth comes from the .…
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