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Recursos educativos
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Changes of state
EduBook Organización
- 1988 visitas
2.1. Changes of state of water Water is the best known example of a substance that occurs in the three states. Changes of state are caused by the action of heating or cooling (or changes in pressure).…
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Water vaporisation and evaporation
EduBook Organización
- 1876 visitas
Vaporisation, or boiling, only occurs at the boiling point (100°C). The whole volume of water that is boiling vaporises. Evaporation occurs when only the particles on the surface of the liquid change…
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The main changes of state
EduBook Organización
- 1682 visitas
Heat ice and water in a saucepan. Watch and explain what happens. Put a container of water in the freezer. Record the temperature of the water at regular intervals, and note it down. What is the…
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The Greenhouse Effect
Tiching explorer Organización
- 5704 visitas
This simulation shows how greenhouse gases affect the climate. Students can compare today's atmosphere with the ice age. They can explore what happens when we add clouds or change the greenhouse gas…
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Nature 2. Natural Sciences
EduBook Organización
- 10307 visitas
I. Introduction 1. Plant nutrition 2. Animal nutrition 3. Plant reproduction 4. Animal reproduction 5. Interaction, adaptation and coordination in animals and plants 6. The natural environment.…
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Summaries - Climates and landscapes of the Earth
EduBook Organización
- 9307 visitas
1. The Earth’s climates There are different types of climates on the Earth. If we take temperature, we can identify three large climate zones on the planet: Tropical zones: located between the…
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Choose. Warm climates
EduBook Organización
- 8646 visitas
Look at the climograph and choose the best answer for each question: What type of warm landscape does this climograph represent? Why do you think that it represents this type of landscape? Is there a…
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Weather and climate
EduBook Organización
- 8114 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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Manifestations of the Earth's internal energy
EduBook Organización
- 5730 visitas
1.1. The temperature inside the earth The surface of the Earth is cold, but we can see some evidence of the heat inside; for example, hot springs and volcanoes. This heat is due to several factors,…
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Summaries - The natural environment. Ecosystems
EduBook Organización
- 5641 visitas
1. The natural environment The distance between the Sun and the Earth, which creates temperatures suitable for living things. This temperature also makes it possible for there to be liquid water on…
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