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      River landforms caused by erosion and deposition

      Lesson details

      Learning outcome

      I can explain the characteristics and formation of river landforms.

      Key learning points

      1. River erosion shapes distinctive landforms (interlocking spurs, waterfalls and gorges).
      2. River erosion and deposition combine to form distinctive landforms (meanders and oxbow lakes).
      3. River deposition forms distinctive landforms (levees, flood plains, estuaries and deltas).

      Keywords

      • Lateral erosion - the process where a river erodes the land on its sides (banks) rather than just the riverbed

      • Hydraulic action - the power of water eroding a river’s bed and banks

      • Abrasion - wearing away of a river’s bed and banks by its load

      • Deposition - when material being carried is dropped due to loss of a river’s energy

      Common misconception

      River erosion is the only process that creates landforms.

      River erosion does create distinct landforms such as waterfalls and gorges. However, deposition and erosion create meanders and oxbow lakes in the middle course and deposition creates landforms such as floodplains and levees in the lower course.

      Teacher tip

      This lesson provides opportunity to look at OS maps to find examples of these landforms, looking at change in contour patterns along the course of a river. Practical modelling of the landforms using playdoh can help pupils to develop understanding.

      Licence

      This content is © Oak National Academy Limited (2026), 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.
      Which is not a type of erosion?

      Hydraulic action
      Abrasion
      Correct answer: Deposition
      Attrition

      Q2.
      When does deposition occur?

      When a river gains energy
      Correct answer: When a river loses energy
      When erosion increases

      Q3.
      What is hydraulic action?

      The process of water dissolving minerals
      The rolling of large boulders along the river
      The scraping of sediment against the riverbed
      Correct answer: The force of water breaking rock apart

      Q4.
      Why do rivers erode more in the upper course?

      Because they have a gentler slope
      Correct answer: Because they have more energy due to steep gradients
      Because they are carrying more sediment
      Because they have a deeper channel

      Q5.
      What is the difference between river discharge and river velocity?

      Discharge is speed, velocity is water volume.
      Discharge and velocity are the same.
      Correct answer: Discharge is volume, velocity is speed.
      Discharge is in the upper course, velocity in the lower.

      Q6.
      What is a tributary?

      A man-made canal
      A river delta
      A deep valley formed by erosion
      Correct answer: A small river or stream that joins a larger one

      4 Questions

      Q1.
      Which landform is created by the erosion of a river in its upper course?

      Floodplain
      Delta
      Correct answer: V-shaped valley
      Meander

      Q2.
      What is a gorge?

      Correct answer: A narrow, steep-sided valley downstream of a waterfall
      A flat area near the river mouth
      A bend in the river
      A raised river bank

      Q3.
      Which of the following statements is true about how river landforms are created?

      All river landforms are formed by erosion only.
      Deposition only occurs at the coast, not in rivers.
      Correct answer: Both erosion and deposition shape different river landforms.
      Rivers in the middle course do not create landforms.

      Q4.
      Which process causes the formation of slip-off slopes in meanders?

      Lateral erosion
      Correct answer: Deposition
      Attrition
      Hydraulic action

      To help you plan your 10 geography lesson on: River landforms caused by erosion and deposition, download all teaching resources for free and adapt to suit your pupils' needs...