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Unit 4: Rivers and seas
EduBook Organización
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Desalination plant (n): a factory that converts salt water into fresh water. erosion (n): the process of weathering and transportation of materials by a river. flow (n): the amount of water a river…
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Introduction - The Hydrosphere
EduBook Organización
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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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End-of-unit evaluation - The Hydrosphere
EduBook Organización
- 3549 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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End-of-unit activities - The Hydrosphere
EduBook Organización
- 2806 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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Initial evaluation 2 - The Hydrosphere
EduBook Organización
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Complete the text with the missing words: Seawater is mainly made up of water and chloride. The water in rivers contains substances compared with the water in seas and oceans. At the poles and in…
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Let's learn how to... - Air and the atmosphere
EduBook Organización
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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…
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![Look at the diagram. [...] | Recurso educativo 463766](//cr.tiching.com/uploads/contents/2014/05/20/463766_1400538674_s.png)
Look at the diagram. [...]
EduBook Organización
- 3057 visitas
Look at the diagram. Which arrows show what happens when we heat water? Which arrows show what happens when we cool water?
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Initial self-evaluation T4 04 - Rivers and seas
EduBook Organización
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Match these elements with the uses that humans give to water: water treatment plant navigation dam fishing oil leisure desalination plant tourism
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Calculate. Matter and its properties (2)
EduBook Organización
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Calculate the mass of water produced when 20 g of hydrogen reacts completely with 160 g of oxygen. g of water.
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Explain. Separation of mixtures 01
EduBook Organización
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How can we separate the components of the following mixtures: water and sugar, sand and salt, vinegar and oil, flour and water, milk and sand.
![Look at the diagram. [...] | Recurso educativo 463766](http://cr.tiching.com/uploads/contents/2014/05/20/463766_1400538674_s.png)
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