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Recursos educativos
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Introduction - Rivers and seas
EduBook Organización
- 6391 visitas
The hydrosphere is made up of all the water on the Earth. This includes the water in the seas, oceans, rivers, lakes, polar ice caps, groundwater and the water vapour in the atmosphere. Water is the…
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Introduction - Human Societies
EduBook Organización
- 6348 visitas
The organisation of human societies is based on many factors, such as economy, politics, culture, history, religion, values and also the level of technological development. Over time, traditional…
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Introduction - Human beings
EduBook Organización
- 5851 visitas
Human beings look different from each other. But human beings are also similar in many ways. Our bodies have three parts: the head, the torso and the limbs. We use our motor system to move. Our motor…
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Introduction - Animal nutrition
EduBook Organización
- 5412 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Introduction - The Roman Empire
EduBook Organización
- 5358 visitas
Rome was a city on the Italian Peninsula. In the 6th century BC, the people expelled their kings and the city became a republic. In the next centuries, Rome conquered territory all over the…
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Introduction - Animal reproduction
EduBook Organización
- 1 lo usan
- 4732 visitas
Reproduction is the only vital function that is not needed to keep an individual alive. It ensures the continuation of the species. Although sexual reproduction is a universal characteristic of animals,…
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Introduction - Weather and climate
EduBook Organización
- 4834 visitas
The weather and the climate are affected by atmospheric phenomena (temperature, humidity, precipitation, atmospheric pressure and wind). These phenomena exist in the Earth's lower atmosphere.…
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Introduction - The Hydrosphere
EduBook Organización
- 4742 visitas
The hydrosphere is the part of the Earth where water can be found. This water includes oceans, seas, rivers, lakes, snow, ice, groundwater and water vapour in the atmosphere. The Earth is the only…
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Introduction - Motion and forces
EduBook Organización
- 4767 visitas
In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. All motion can be described…
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Introduction - Medieval Cities
EduBook Organización
- 4655 visitas
In the 12th and 13th centuries, a period of economic growth led to the rebirth of cities. Cities became important centres of artisan activity and trade. Palaces, cathedrals and markets were built in the…