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4ºEP. THE ATMOSPHERE. NATURAL SCIENCE. FORMACIÓN - Contenido educativo
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The atmosphere is a layer of air which covers the earth and is 1000 km thick.
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The atmosphere is like a protective shield because it stops the sun's rays from directly
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reaching the earth.
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The atmosphere makes life on our planet possible because it regulates the surface temperature
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of the Earth and it filters radiation from the Sun.
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The atmosphere is divided in five layers.
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From the closest to the surface these are the troposphere, the stratosphere, the mesosphere,
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the thermosphere and the exosphere.
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The troposphere.
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Water vapor and most of the oxygen we breathe is in this layer.
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can find clouds, rain and wind here. The stratosphere. The air forms horizontal
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layers or strata here. It contains the ozone layer which absorbs most of the
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sun's harmful rays. The mesosphere. There is very little air in this layer. We can
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see shooting stars and there is sometimes turbulence here. Spaceships
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returning to Earth start to feel the friction of the atmosphere here.
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The thermosphere. There is very little air and it can be very hot up to 2,000
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degrees centigrade. Many meteorites disintegrate here.
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The exosphere, the transition zone between the Earth's atmosphere and space.
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You can find artificial satellites here.
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This is the mind map that will help you review the layers of the atmosphere.
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- Autor/es:
- CEIPS SANTO DOMINGO
- Subido por:
- Cp santodomingo algete
- Licencia:
- Todos los derechos reservados
- Visualizaciones:
- 105
- Fecha:
- 7 de noviembre de 2016 - 1:32
- Visibilidad:
- Público
- Centro:
- CP INF-PRI SANTO DOMINGO
- Duración:
- 02′ 26″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1280x720 píxeles
- Tamaño:
- 104.42 MBytes
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