RIVERS

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  • Created by: PrepChick
  • Created on: 30-08-13 15:32
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  • GEOGRAPHY RIVER LANDSCAPES
    • RIVER BASICS AND DRAINAGE BASIN
      • WHAT IS A DRAINAGE BASIN
        • THE LAND THAT IS DRAINED BY A RIVER SYSTEM
      • RIVERS BEGIN UPHILL AND MAKE THEIR WAY DOWNHILL TO THE SEA
      • A RIVERS START IS A SOURCE
      • A RIVER MEETS THE SEA AT ITS MOUTH
      • THE RIVER BECOMES WIDER AND DEEPER AS IT IS JOINED BY OTHER TRIBUTARIES
        • TRIBUTARIES ARE OTHER SMALL RIVERS
      • THE POINT AT WHICH A RIVER MEETS IS CALLED A CONFLUENCE
    • HOW DO RIVERS ERODE?
      • HYDRAULIC ACTION
        • THIS IS THE PRESSURE OF WATER BEING PUSHED AGAINST THE BEDS AND BANKS OF A RIVER. THIS CAUSES PIECES OF ROCK TO BREAK OFF
      • CORRASION
        • PARTICLES ARE CARRIED ALONG THE RIVER AND THEN THROWN AGAINST THE BANKS WITH A CONSIDERABLE FORCE
      • CORROSION
        • THIS IS A CHEMICAL REACTION BETWEEN CERTAIN ROCKS AND THE RIVER WATER
      • ATTRITION
        • THIS PROCESS INVOLVES WEARING AWAY OF THE ROCKS THAT IS IN THE RIVER. LARGE PIECES OF ROCK KNOCK INTO EACH OTHER UNTIL THEY BECOME SMALLER PEBBLE AND PEBBLE LIKE

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