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Video: Thermodynamics (part 1)
Khanacademy Organización
- 1 lo usan
- 2245 visitas
Video (10-minute long) to help us understand how gases generate pressure in a container and why pressure x volume is proportional to the combined kinetic energy of the molecules in the volume. There are…
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European cities promote widespread use of bikes
EducaMadrid Organización
- 3698 visitas
The bicycle is still having trouble imposing itself in the European urban environment. Getting around town on a bike can be a real battle. Projects, financed by the Intelligent Energy - Europe…
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Physical and chemical changes
EduBook Organización
- 2188 visitas
Energy causes matter to change: Physical changes. The form and state of the substance changes but the composition does not. Chemical changes. These changes give us a substance that is different to the…
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The Universe
EduBook Organización
- 2165 visitas
1.1. The composition of the universe The Universe is everything. It includes all space and time, and all known or still undiscovered forms of energy and matter. In the Universe, there are a lot of…
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Summaries - Nutrition, breathing and circulation
EduBook Organización
- 2148 visitas
1. Nutrition. Food and nutrients Food enters our body through the digestive system. Food gives us energy to grow and repair our body if we are ill or hurt. We obtain important substances from food to…
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True/false. Heat
EduBook Organización
- 2098 visitas
Decide if the following statements are true or false: The Sun is the main source of heat. ➝ Heat or heat energy passes from cold objects to hot objects. ➝ Geysers and hot springs are artificial…
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Game: ElectroCity
Alfonso Pérez Docente
- 2040 visitas
"ElectroCity" is an interesting online game designed for education. In this game we learn about energy: how is it generated, how much does it cost, how does it affect the environment. We have to…
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Final self-evaluation 06 - The organisation of urban areas
EduBook Organización
- 2044 visitas
Choose the correct answer: What is one of the main aspects of urban networks? Where do the inequalities in access to services come from? What is a conurbation? What caused the growth of sprawling…
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Find out about...
EduBook Organización
- 1940 visitas
How industrial activity evolved Craftsmanship In the Middle Ages, the master craftsman owned his workshop and tools. The production process was slow and labour intensive. These artisans belonged to a…
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True / False. Nutrients
EduBook Organización
- 1937 visitas
Are these sentences true or false? We obtain important substances from food called nutrients. There are three types of nutrients: carbohydrates, proteins and fats. Fats give us less energy than…