You have learned how to interpret how landforms are the result of a combination of constructive and destructive forces such as deposition of sediment and weathering.

What is weathering? The process that tears down land forms, the breaking of rock into soil…SUCH AS

ICE

HEAT

WIND

ROOTS / PLANTS

WATER

WHAT ABOUT EROSION? Erosion is the moving of sediments from one place to another – such as by water, waves, wind or glaciers.

WATERWATER

WAVES

WIND

GLACIERS

We identified and observed actions that require time for changes to be measured, including erosion, weathering and flow. RIVER FEATURES

V – SHAPED VALLEY Valleys formed from the action of rivers tend to have steep sides, resulting in a V-shape.

Meandering Channel A meander is a bend in a river. Meanders normally occur in the middle and lower courses where the water is moving more slowly. The river carves out S-shaped bends.

Waterfalls

Alluvial Fan Alluvial fans are fan-shaped deposits of water-transported material (alluvium).

TRIBUTARY A tributary is a stream or river flowing into a larger river. The water being drained from two areas now flows in one main channel. A river grows as more tributaries flow into it.

DELTA Rivers move slowly at the river’s mouth. The river carries a lot of sediment and mud. The river deposits (drops) the sediment and mud at its mouth. This sediment and mud spreads out into a fan- like shape, or delta, across the mouth of the river.mouth

How does the slope of an area affect the land?

Both are meandering rivers, but why has one river cut so deeply into the rock and soil, while the other river has cut a very shallow basin?

The higher the slope of the land the deeper the river cuts through the terrain.

SO WHICH ON HAS THE HIGHER SLOPE?

THE END