Name ______Erosion Power Point Notes

NAME ______EROSION POWER POINT NOTES

Erosion is ______

______.

Erosion can occur ______or ______.

Erosion occurs because of the actions of ______, ______,

______, and ______.

GRAVITY:

When gravity alone causes rock or sediment to move down a slope, the erosion is called

______.

4 Types of Mass Movement:

• ______– Sediments move downhill ______.

• ______– Rock or sediment moves suddenly downhill ______

______.

• ______& ______– Layers of rock or land ______

and slide ______downhill.

• ______– A mass of ______flows rapidly downhill.

GLACIERS:

When glaciers get thick enough, gravity causes them to ______. As they move,

they ______from some areas and ______

______in other areas.

2 Types of Glaciers

• ______spread out in all directions. They cover

much of a continent or large island. (ex: ______and ______)

• ______move down valleys that have already been

cut by rivers. They are much ______but can still be tens of kilometers long.

Glaciers cause erosion by two processes:

• As a glacier flows over land, it ______. This process is

called ______. When the glacier moves, it ______

______.

• Many rocks ______

and get ______across the land, making ______and

______. This process is called ______.

New landforms can be developed when glaciers ______

______.

WIND:

Wind by itself is the ______agent of erosion.

It can still be a powerful force in shaping the land in areas where there are ______

______.

Wind ______from Earth’s surface, but

often ______.

This process is called ______.

When sediments are blown by strong winds, ______can make ______in

rocks and produce ______surfaces.

When wind blows around an obstacle, it ______. This causes sand that is

carried by the wind to be ______, sometimes forming ______.

WATER:

Water is a ______agent of erosion.

______are the most important agent of erosion on Earth!

Water that flows over Earth’s surface is called ______.

This water carries loose sediment with it causing erosion. The more ______water has,

______.

As runoff travels, it forms ______in the soil called ______. As

many rills flow into one another, they grow larger, forming ______. As many gullies join

together, they form ______, which can eventually grow larger and form ______.

Anytime moving water ______, such as when rivers enter oceans or lakes,

______. This can create landforms such as

______and ______. This is known as ______.

When rain falls or snow melts, not all of the water evaporates or becomes runoff. Some water

______.

This groundwater can cause erosion, forming ______and making ______

and ______.

Acting like drills or buzz saws, ______erode the solid rock of the coast into

______and ______.

Large waves can ______,

eventually causing pieces of rock to break off.

Waves also cause the sediment they carry to ______

through ______.

Waves also deposit sediment they are carrying, forming features such as ______.