WebGorges are found in the upper course of a river. - Waterfalls form where a river flows over an area of hard rock followed by an area of softer rock. - The softer rock is eroded more than the hard rock, creating a 'step' in the river. - As water goes over the step it erodes more and more of the softer rock. - A steep drop is eventually created ...

Royal Geographical Society - Resources for schools

WebThis answer hits each of the points needed for full-mark answer: Waterfalls form in upstream areas where the river flows over overlying bands of hard and soft rock. The softer rock (e.g. sandstone) is eroded at a faster rate than the harder rock (e.g. dolerite or granite). The active erosive processes are hydraulic action when the force of the ... WebFormation of an oxbow lake. The river is meandering across the valley and erodes laterally. Most water is directed towards the outside bend, there is also reduced friction. and increased velocity. towa newgrounds

Describe and explain the formation of a gorge - 6 marks

WebWhen temperatures drop and snow begins to fall, the water inside the valley trickles through the cracks in the rocks. Then, as temperatures fall below zero degrees celsius, usually at night, the... WebGCSE Geography Rivers Revision. Formation of upper course landforms - Waterfalls WebThe formation of a meander. As the river erodes laterally, to the right side then the left side, it forms large bends, and then horseshoe-like loops called meanders. The formation of meanders is ... towan earthworks