WEATHERING,EROSION,lANDFORMS,AND DEPOSITION

ANIMAL ACTION-
when animals and some insects burrow in the ground,they loosen soil and rock.

ICE WEDGING-
A crack in the ground formed by a narrow or thin piece of ice that expands over time.
ex:Iceland mountains.

ROOT PRY-
plant like trees send out root systems,the fIne roots will find their way into cracks and into rocks.

RELEASE OF PRESSURE-
Also known as unloading, materials are removed by pressure which causes underlying rocks to expand.ex:Bryce National Park,Utah.

ABRASION-
When wind carves away sediment from land forms consisting of mainly rock.ex:Half Dome in Yosemite Park,California.

OXIDATION-
When iron combines with oxygen and rust starts to appear during this process.ex:Highland County,Texas.

CARBONIC ACID-
Mixing water with carbon dioxide to make carbonic acids eating away rock,and is usually what makes caves.

LICHENS-
When plant roots grow, they produce a weak acid that will slowly dissolve rocks and will spread to other rocks.

ACID RAINS-
When rain catches a lot of pollution and carries coal smoke,and acid forming chemicals that have been released into the atmosphere.ex:The Black Forest in Germany.

V-SHAPED CANYONS-
A v-shape gorge,typically one with a river flowing through it.ex:Copper Canyon.

SEA CAVES-
A type of cave that was formed primarily by the wave action through it.ex:Rikoriko Cave,New Zeland

LAND ARCHES-
a long structure of natural rock that builds a small hill.ex:The Black Hills of Western South Dakota.

U-SHAPED VALLEYS-
A valley with characteristics of a u shape with steep,straight sides and a flat bottom.

LAKES-
A large body of water surrounded by land.ex:Lake Superior

BEACHES-
Sand deposited by waves.ex:Maya Bay,Thiland

FLOOD PLAINS-
Sediment dropped along river banks.ex:a flood plain in Africa.

DELTAS-
Sediment deposited where a river meets an ocean.ex:Nile River Delta.

BARRIER ISLAND-
Islands of sand that form parallel to the shore. ex:Hauraki Gulf,New Zeland.

SAND DUNES-
Sand blown into hills by wind.ex:Death Valley,California.

PLAINS-
Sediment blown into hills by wind.ex:Great Plains in Texas.

MORAINES-
Deposits left by glacier.

CITATIONS-

• weatheringerosion.weebly.com
• academic.pgcc.edu/bgage/weathering_rev.ppt
• education.nationalgeographic. com
• study.com
• dictionary.com
• worldlandforms.com