Air and the atmosphere
Humans, plants and animals need air to breathe and live. Air is a mixture of gases. A layer of air covers the Earth and protects life on our planet. This layer of air is called the atmosphere. When air moves, we call it wind. Wind helps to move sailing boats and turn windmills and wind turbines. In this unit we are going to learn about the atmosphere and the wind, and the different gases in the air.
Esta secuencia contiene:
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7 actividades
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27 recursos
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Idioma:
- Inglés
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Formato:
Interactivo
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Secuencia didáctica
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Humans, plants and animals need air to breathe and live. Air is a mixture of gases. A layer of air covers the Earth and protects life on our planet. This layer of air is called the atmosphere. When air moves, we call it wind. [...]
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What is air? Air is a mixture of gases. It forms the atmosphere around us. Air is made up of two main gases: nitrogen and oxygen. It also has other gases, including water vapour and carbon dioxide. Properties of air Air has weight. [...]
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Wind Wind is moving air. Air moves from cold areas to warmer areas and produces wind. When the Sun is shining, the air gets hot. Hot air is lighter than cold air. So when the air gets hot, it rises up into the sky. [...]
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We need air to breathe Humans and other animals that live on land need air to live. When we breathe, we take oxygen from the air. With this oxygen and with the food we eat, our body has the energy it needs to live. [...]
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Humans, plants and animals need air to breathe and live. Air is a mixture of gases. A layer of air covers the Earth and protects life on our planet. This layer of air is called the atmosphere. When air moves, we call it wind. [...]
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Observe how air can move water What do we need? A plastic bottle. A plastic tube. A big plastic bowl. Plasticine. Water. What do we do? Cut the top off the bottle and fill it with water. Fill half of the plastic bowl with water. [...]
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Humans, plants and animals need air to breathe and live. Air is a mixture of gases. A layer of air covers the Earth and protects life on our planet. This layer of air is called the atmosphere. When air moves, we call it wind. [...]
![Choose the correct the correct endings for the sentences. [...] | Recurso educativo 525595](http://cu.tiching.com/uploads/contents/2014/05/19/525595_1400529047_s.png)
Cursos y asignaturas
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9 años:
- Biología
- Sociología
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10 años:
- Biología
- Sociología
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