Landforms
How are mountains formed?
Is this considered a constructive or destructive?
Mountains are formed when 2 tectonic plates collide and push up
Both
What is weathering?
List the 5 forces of weathering
Weathering: Breaking down the earths surface into sediment
-Wind
-Water
-Ice
-Plants
-Animals
What is erosion?
List the 4 agents of erosion
Erosion is the movement of sediment by wind, water, ice, or gravity
To study earthquakes and volcanoes
What is sediment?
Broken pieces of rock
Which processes form Valleys?
Glaciers weathering and Eroding the land
How can Earths surface be weathered by plants?
A plant can force its way through a crack in a rock, eventually breaking it a part
How can Earth's surface be eroded by water?
Water picks up sediment and moves it (rivers, streams, etc)
What is the DART system used for?
Tsunamis
What is abrasion?
Name the 2 ways abrasion can occur
When a rock is worn smooth by WIND or WATER
Which processes form Deltas?
Through Deposition - As water slows down it branches off and drops sediment
How can Earths surface be weathered by Wind?
Wind can pick up sediment and hit it against a rocky surface eventually breaking the rock
How can Earth's surface be eroded by wind?
Wind picks up sediment and moves it.
Why do farmers use the technique of terracing and contour plowing?
To slow down erosion by wind and water
What is the term for when one plate slides under another?
*This happens in the formation of a volcano*
Subduction
Which processes form Canyons?
Weathering and Erosion by water (River)
How can Earth's surface be weathered by water?
Rain - hits a rock and over time breaks it down
rivers/streams - run over a rock and eventually break it down
Ocean- waves continuously hit the side of a cliff and break it down
How can gravity erode the surface of the earth?
What is the purpose of Dams and Levees?
To control water levels - prevent flooding
Name 2 landforms that are created through deposition
Sand dunes
Sand bars
Barrier Islands
Deltas
Beaches
Weathering and Erosion - wind, water, ice, gravity
How can Earth's surface be weathered by ice?
How can Earth's surface be eroded by ice?
What are doppler radar, satellite imagery, and infrared technology used for?
To predict the weather - storms, hurricanes, tornadoes, flooding
What is beach nourishment?
Adding sand back to the beach to help slow down the effects of Erosion