Weathering
Is weathering a slow change or fast change?
slow change
The biggest of rocks can be broken by _____________ when water gets into a rock's crack, freezes, and expands the cracks.
Ice. This is a form of weathering
Is erosion a natural process?
Yes. Erosion is as natural because it is not caused by man.
The movement of soil or sediment from one location to another by way of water, ice, wind, or gravity
Erosion
What type of water erosion causes the most erosion?
Fast Flowing Rivers
After weathering occurs, what things are left over from the rocks that have been broken down?
Sediment
___________ can help with the process of weathering by burrowing in the ground.
Animals
Which of the following is NOT an erosion processes?
A.Rocks broken down by crashing into other rocks.
B.Sand along a shore carried away by waves.
C. Small pebbles moved to a curve in the river.
D. Sand carried by wind in the desert.
A.Rocks broken down by crashing into other rocks is an example of weathering.
The breaking down of substances such as rocks or minerals by physical, chemical, or biological processes.
Weathering
What direction does erosion move earth materials?
upward or downward
Downward to lower elevation level, toward the ocean
The grand canyon is an example of what type of erosion caused by what force?
by water
The roots of ____________ have the ability to enter and force cracks within rock farther apart.
Plants
Erosion can be caused by what forces?
1. Wind
2. Ice
3. Water
4. Gravity
Can weathering be stopped?
No
Glacial erosion or ____________ erosion can change landforms into U-shaped valleys.
Ice
Which of the following changes to the Earth’s surface is mostly created by moving wind?
A Deep cracks forming
B Rocks getting rounded
C Large sand dunes moving
C - large sand dunes moving
This is the process where wind breaks down rocks causing the rock to be smooth.
Abrasion
While driving along the highway I noticed huge rocks along the highway. Large nets covered these rocks and seemed to go from the top to the bottom.
Were these nets put in place to stop weathering or erosion?
erosion
Can erosion be stopped?
no, but it can be slowed down
Gravity pulling rocks and sediment down hills and mountains is known as ______________.
Landslides
True or False: Weathering can't break down the Earth's crust.
False
What is deposition?
Deposition is when particles are carried by water, wind, ice, and deposited into a new location.
Beaches, Sandbars, and barrier islands are formed by ___________ erosion.
Water
When particles carried by wind, water, or ice are dropped in another location.
Deposition
Rocks that are carried in a quickly moving river for a long time are most likely to be –
A long and thin
B large and flat
C smooth and rounded
C - smooth and rounded