Middle/ lower course

• What is the approximate width of the river in the middle course?

  130 meters
• What landscape feature begins to form in the middle course of a river?

  Meanders
• How are meanders formed in a river?

  By lateral erosion and deposition
• What happens to the neck of a meander as it migrates?

  It narrows and may break through
• What is left behind when a meander breaks through?

  Oxbow lakes
• Where are slip-off slopes located in relation to river bends?

  On the inside of the bend
• What forms on the outside of river bends due to erosion?

  River cliffs
• What causes the fastest flowing water in a river?

  It flows on the outside of bends
• What processes contribute to the erosion of river cliffs?

  Hydraulic action and abrasion
• What typically happens during floods in relation to meanders?

  They may break through to form new paths
• What are floodplains?

  Flat areas of marshland beside rivers
• Why are floodplains prone to flooding?

  They are laterally eroded by meandering rivers
• What is deposited on either side of river banks during flooding?

  Settlement
• What are the characteristics of levees?

  Raised river banks with gravel and alluvium
• How does the grading of sediments in levees occur?

  Coarsest sediments are closest to the channel
• What is the slope of levees like?

  Steeper on the channel side
• What is the River Severn's total length?

  354 kilometers
• What is an estuary?

  Where freshwater meets saltwater
• What is the tidal range of the River Severn?

  About 15 meters
• What is notable about the width of the River Severn?

  It measures about 3.2 kilometers
• What type of landforms are found in estuaries?

  Mud flats
• What is the process of meander formation?

  Meanders form through lateral erosion and deposition.
• How do floodplains change over time?

  They are gradually eroded by meandering rivers.
• What role do humans play in managing levees?

  Humans may intervene to shape levees.