Geography Rivers 0.0 / 5 ? GeographyWater and riversGCSEAQA Created by: OctolingMxCreated on: 11-11-18 11:10 Definition of Traction Large Particles rolled along river bed by force of the water 1 of 24 Definition of Suspension Small particles are are carried along in the water 2 of 24 Definition of Solution (Transportation) Soluble materials dissolve in the water and are carried along 3 of 24 Definition of Saltation Pebble sized particles are bounced along the sea bed 4 of 24 Definition of Hydraulic Action Sheer force of the water breaks particles away from the river channel 5 of 24 Definition of Abrasion Eroded rocks picked up by the river scrape and rub against the channel 6 of 24 Definition of Attrition Eroded rocks picked up by the river smash into each other and break into smaller fragments 7 of 24 Definition of Solution ( Erosion) River dissolves some types of rock 8 of 24 How are Spits formed At sharp ends in the river such as the river mouth 9 of 24 How are bars formed When a spit joins 2 headlands together 10 of 24 How are Sand dunes formed When sand is deposited by longshore drift and moved up the beach by wind 11 of 24 Definition of Hard engineering Man made structures built to control the flow of the sea and to reduce flooding and erosion 12 of 24 Definition of Soft engineering Working with the envionemnt to naturall create defences agaisnt flooding 13 of 24 Examples of Soft engineering Beach nourishement, Dune regeneration 14 of 24 Examples of Hard engineering Groynes, Rock armour, Sea wall 15 of 24 Definition of Vetical erosion Deepens the river chanel making it V shaped 16 of 24 Definition of Lateral Erosion Widens the river during the formation of meander 17 of 24 Definition of Tributary Stream or river that conjoins into another 18 of 24 Definition of Meander Large bend in the river 19 of 24 What's the gradient of the upper course river Steep 20 of 24 What's the gradient of the middle course river Medium 21 of 24 What's the gradient of the lower course river Gentle 22 of 24 Definition of Long profile A long profile is a line representing the river from its source (where it starts) to its mouth 23 of 24 Definition of Cross profile A cross profile shows a cross-section of a river’s channel and valley at a certain point along the river’s course. 24 of 24
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