Rivers- end of Y7 assessment key words

Key Words:

Erosion: when a river wears the banks away.

Scource: The start of the river, which is normaly starts in a spring on a moutain.

Solution: disolved material from the waterbed and banks.

Abrasion: when rocks and stones rub againt the banks and the soil wears away.

Hydraulic action: when water is forced into small cracks on the banks, and breaks the banks up.

Deposition: when the outside of the curve in a river flows faster than the inside curve of the river. The outside curve is eroded further and further, whilst material is deposited on the…