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      The middle and lower course of a river

      Lesson details

      Learning outcome

      I can describe the characteristics and landforms associated with the middle and lower course of a river.

      Key learning points

      1. As the river flows downstream, the gradient becomes flatter and the river becomes wider and deeper.
      2. Landforms such as meanders form in the middle course of a river.
      3. Landforms such as levees, flodplains, estuaries and deltas can be found in the lower course.
      4. Over time oxbow lakes can form when meander loops become cut off following a flood.
      5. Deposition occurs in the lower course and this forms landforms such as deltas and estuaries.

      Keywords

      • Meander - a winding bend in a river

      • Oxbow lake - a curved lake formed by an old meander

      • Levee - an embankment alongside a river

      • Floodplain - a flat area of land either side of a river which experiences flood in periods of high river flow

      • Estuary - the tidal mouth of a river, where the river meets the sea or ocean

      Common misconception

      Levees are man made.

      Levees can be built as a flood defence but they can also be created naturally.

      Teacher tip

      Use google maps satelite view to show the colour of rivers near the estruary to show where deposition is taking place.

      Licence

      This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      What is river erosion?

      Correct answer: the breaking down and removal of rocks and soil by the river
      the movement of water underground
      water soaking into the ground
      the flow of water in a river

      Q2.
      Why is the hydrological cycle important?

      It helps control Earth’s temperature.
      It supports plant and animal life.
      It provides fresh water.
      Correct answer: All of the above

      Q3.
      What is precipitation?

      water soaking into the ground
      water turning into vapour
      Correct answer: water falling from clouds as rain, snow, sleet, or hail
      water evaporating from the ocean

      Q4.
      What is the largest river in the world by length?

      Amazon River
      Mississippi River
      Correct answer: Nile River

      Q5.
      What is the name of a waterfall’s steep drop?

      riverbed
      cliff
      Correct answer: plunge pool
      estuary

      Q6.
      What is the main cause of river erosion?

      wind
      the sun
      Correct answer: flowing water
      earthquakes

      4 Questions

      Q1.
      What is the main feature formed in the middle course of a river?

      waterfall
      Correct answer: meander
      v-shaped valley
      corrie

      Q2.
      What is a floodplain?

      a steep-sided valley
      a waterfall plunge pool
      Correct answer: flat land next to a river that often floods
      a rocky riverbed

      Q3.
      What causes the formation of levees?

      only human construction
      Correct answer: deposition during flooding
      earthquakes
      glacial movement

      Q4.
      Which process increases in the lower course?

      vertical erosion
      Correct answer: deposition
      traction
      weathering

      To help you plan your 9 geography lesson on: The middle and lower course of a river, download all teaching resources for free and adapt to suit your pupils' needs...