River Processes

Erosion is...

• the movement of rocks, sand, and silt by the river.

• breaking away of the river bed and banks by the sheer force of the water getting into small cracks.

• when the river dissolves minerals from the rocks they are carried in the water itself.

• the wearing away of the land and the stones carried in the river.

Corrasion is...

• the wearing away of the river bed and banks by the load hitting against them.

• the wearing down of the load as the rocks and pebbles hit the river bed and each other, breaking into smaller and more rounded pieces.

• the breaking away of the river bed and banks by the sheer force of the water getting into small cracks.

• when water dissolves minerals from the rocks and washes them away.

Attrition is...

• when water dissolves minerals from the rocks and washes them away.

• the breaking away of the river bed and banks by the sheer force of the water getting into small cracks.

• the wearing down of the load as the rocks and pebbles hit the river bed and each other, breaking into smaller and more rounded pieces.

• the wearing away of the river bed and banks by the load hitting against them.

Hydraulic action is...

• the wearing down of the load as the rocks and pebbles hit the river bed and each other, breaking into smaller and more rounded pieces.

• when water dissolves minerals from the rocks and washes them away.

• the wearing away of the river bed and banks by the load hitting against them.

• the breaking away of the river bed and banks by the sheer force of the water getting into small cracks.

Chemical action (corrosion) is...

• the wearing away of the river bed and banks by the load hitting against them.

• the breaking away of the river bed and banks by the sheer force of the water getting into small cracks.

• when water dissolves minerals from the rocks and washes them away.

• the wearing down of the load as the rocks and pebbles hit the river bed and each other, breaking into smaller and more rounded pieces.

Transport is...

• the wearing away of the land and the stones carried in the river.

• the dumping of rocks, sand and silt wherever the river slows down.

• the movement of rocks, sand, and silt by the river.

• the breaking away of the river bed and banks by the sheer force of the water getting into small cracks.

Traction is...

• when the river dissolves minerals from the rocks and they are carried in the water itself.

• when small stones which the water cannot lift, bounce off each other and are carried forward for short distances by the water above the river bed.

• when quite large stones are rolled or dragged along the river bed by the force of the water.

• when particles are small enough to be lifted and carried long distances by the river.

Saltation is...

• when the river dissolves minerals from the rocks and they are carried in the water itself.

• when small stones which the water cannot lift, bounce off each other and are carried forward for short distances by the water above the river bed.

• when quite large stones are rolled or dragged along the river bed by the force of the water.

• when particles are small enough to be lifted and carried long distances by the river.

Suspension is...

• when the river dissolves minerals from the rocks and they are carried in the water itself.

• when small stones which the water cannot lift, bounce off each other and are carried forward for short distances by the water above the river bed.

• when quite large stones are rolled or dragged along the river bed by the force of the water.

• when particles are small enough to be lifted and carried long distances by the river.

Solution is...

• when the river dissolves minerals from the rocks and they are carried in the water itself.

• when small stones which the water cannot lift, bounce off each other and are carried forward for short distances by the water above the river bed.

• when quite large stones are rolled or dragged along the river bed by the force of the water.

• when particles are small enough to be lifted and carried long distances by the river.