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Unit 4 part 1
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- 2. VOCABULARY • Hydrosphere: Includesall the water on the Earth • Groundwater: Water beneath the Earth's surface • Ocean current: Current of water that crosses oceans and does not mix with the rest of the ocean water • Sedimentation: The depositing of materials by a river • Erosion: The process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow, and then transported and deposited in other locations.
- 3. • Transportation: Thecarrying of small materials by a river • Flow: (Caudal)The amount of water a river carries. • Wave: The movement caused by wind moving the water on the surface of the sea • Tide: (Marea)The natural rising and lowering of the water level of oceans and seas, caused by the Moon´s gravitational pull
- 4. LISTENING • Truck 17,p.43 • Activities p.43 • What is Hydrosphere? • What forms does the water take?
- 5. THE WATER CYCLE •The water cycle explains how continental water, surface water and groundwater all originate from precipitation
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- 8. Parts of ariver Nacimiento Afluente Cauce Caudal Llanura aluvial Ribera Desembocadura Humedal
- 9. MORE VOCABULARY • Bog:Pantano • Marsh: Marisma • Slope: ladera • Meander: Meandro • River bed: lecho, fondo del río
- 10. Upper Course This iswhere the river is still young and quite small, often up in the hills. You might find steep valleys and waterfalls in the upper course. This causes erosion Middle Course This is when the river gets larger- the valleys may be wider and the slopes more gentle. The river transport the smallest materials Lower Course The Lower course of the river is when it approaches the sea. The river is at its widest, and it often goes through flat land (the flood plain).The river deposits the materials (sedimentation)
- 11. ACTIVITIES • Page 47 •5 and 6