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A broad, relatively flat area beside a river that can be covered by water when the river floods.

Relatively flat land beside a river, built up partly by sediment deposited during floods.

Erosion along valley sides helps widen valleys, while deposition builds up relatively flat floodplains. During floods, water spreads beyond the channel and deposits sediment, including fine material called alluvium. Over time, these processes produce broad valleys and flat valley floors.

Name the River Eden, locate it in Cumbria, north-west England, and explain why Carlisle’s position on its lower-course floodplain matters.

Distinguish factors that increase runoff from floodplain development, which puts people and property in the path of floodwater.

Distinguish increasing the likelihood of flooding from increasing its consequences: building on a floodplain puts more people and property in danger.

A broad, relatively flat area beside a river, shaped by channel migration and built up by sediment deposited during floods.

A broad, relatively flat area beside a river, built partly from sediment deposited during floods.

A relatively flat area beside a river that is covered by water during floods and receives deposited sediment.

During floods, rivers spread across the land beside their channels and deposit sediment, helping build flat floodplains. Some lowland areas also contain glacial till. This relatively easily eroded material can be reworked by rivers long after the ice has disappeared.

A relatively flat valley floor beside a river, shaped by lateral erosion and the accumulation of river deposits.

A flat area of land beside a river that can be covered by water when the river overflows.

An area of relatively flat land beside a river that can be covered by water when the river overflows.

A broad, relatively flat area beside a river, shaped by the river's sideways movement and the deposition of sediment during floods.

A floodplain is a broad, relatively flat area beside a river. Its formation involves both lateral erosion and deposition.

A broad, relatively flat area beside a river that is covered by water when the river floods.

Floodplain

Definition

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Edexcel GCSE Geography A · 1GA0

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Edexcel GCSE Geography B · 1GB0

OCR GCSE Geography B · J384