Grade 12

Drainage Density

This is a measure of how well a basin is drained by rivers. The more extensive the network of streams, ...
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/ basin area, Drainage density, Grade 12, total length of streams, Water

Fluvial Landforms – Waterfalls and Rapids

‘Fluvial’ means of the river or found in a river. Moving water is very powerful. Rivers are always at work ...
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/ Eugrabies, fluvial landforms, Grade 12, Howick, mac mac, Rapids, transverse profile, tugela, Water, waterfalls

River Discharge

Discharge of a river means the speed and volume of the river’s flow.  Discharge is a measure of how much ...
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/ Discharge, Grade 12, laminar flow, turbulent flow, velocity, Water

River Drainage Patterns

A drainage pattern refers to the river network and depends very much on the topography of the land where the ...
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/ dendritic, deranged, Grade 12, parallel, radial, rectangular, river drainage system, trellis, Water

River Drainage Systems

The Orange River is South Africa’s largest river with its source in the Lesotho highlands. Its catchment area covers nearly ...
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/ baseflow, catchment, Grade 12, Orange River, pollution, run off, sink, Source, Water

Stream Ordering

Stream means little river in everyday understandings but in Geography it means any channel that water flows in. Stream order ...
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/ first order streams, Grade 12, second order streams, stream order, Water

Types of Rivers

The water supply in the river determines its type. 1. Permanent (or perennial) rivers are always flowing even if the ...
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/ episodic rivers, exotic rivers, Grade 12, perennial, periodic, permanent, Water