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• Hydrosphere: Includes all the water on the Earth• Groundwater: Water beneath the Earths 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 Earths surface by natural processes such as wind or water flow, and then transported and deposited in other locations.
• Transportation: The carrying 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
LISTENING• Truck 17, p.43• Activities p.43• What is Hydrosphere?• What forms does the water take?
THE WATER CYCLE• The water cycle explains how continental water, surface water and groundwater all originate from precipitation
Parts of a river Nacimiento Afluente Cauce Caudal Llanura aluvialRibera Humedal Desembocadura
MORE VOCABULARY• Bog: Pantano• Marsh: Marisma• Slope: ladera• Meander: Meandro• River bed: lecho, fondo del río
Upper Course This is where 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 Lower CourseMiddle Course The Lower course of the river isThis is when the river gets when it approaches the sea. The river is at its widest, and it oftenlarger- the valleys may be goes through flat land (the floodwider and the slopes more plain).The river deposits thegentle. The river transport materials (sedimentation)the smallest materials