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River Erosion to Delta

  • Science
  • Class 5
  • 3D model
  • English

River Erosion to Delta: a 3D model for Class 5 Science, covering erosion: fast water on the outside of a bend wears the bank away, transport: the river carries sediment downstream, deposition: sediment drops where the flow slows and loses the ability to carry it, inside of a bend = slow water = deposition (sand bar); outside = fast water = erosion, a river slows as it opens into a sea or lake, so sediment settles near the mouth.

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Also called

river erosion · delta · river delta · deposition · meander · river bend · sediment transport · point bar · cut bank · river mouth · distributaries

Topics

  • erosion: fast water on the outside of a bend wears the bank away
  • transport: the river carries sediment downstream
  • deposition: sediment drops where the flow slows and loses the ability to carry it
  • inside of a bend = slow water = deposition (sand bar); outside = fast water = erosion
  • a river slows as it opens into a sea or lake, so sediment settles near the mouth
  • a delta grows slowly as low lobes and branching distributary channels
  • faster flow carries sediment further
  • not every river forms a delta

About this model

A GLB file of about 1556 KB, shown in Lably's 3D viewer and, on a phone, placed in your room with AR. Credit: River-bend schematic river-erosion.glb from the user's Lably project assets; channel, basin, delta, markers and all animation authored for Lably AR. | User project asset (no third-party licence); new parts authored for Lably AR

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