Constructive Forces
It's processes that build up the Earth
Constructive processes
Is what happens to Earth's surface over long periods of time
What is worn down?
The process that breaks down rock and other substances at Earth's surface
What is weathering?
It is when water freezes in a crack in the rock, it expands and makes the crack bigger
What is ice wedging?
The difference between magma and lava
Magma is lava that is inside of the Earth, lava is magma that is outside the Earth.
These are created as wind and water deposit soil, and are found in deserts, rivers, and beaches
Sand dunes
What are destructive processes?
Because of weathering, large boulders turn into small pieces of this
What is sediment?
Moles, gophers, prairie dogs, insects, bunnies, are all the cause of this kind of weathering
What is animal weathering/animal actions?
No, only at the edges of tectonic plates.
This is the laying down or settling of eroded material. Small grains of sediment often settle in low-energy environments.
What is deposition?
Three examples of destructive weathering.
What is erosion, landslides, volcanic eruptions, earthquakes, floods, etc?
This kind of erosion picks up and moves loose sediment in rivers/streams
What is water/water erosion?
It breaks down rock causing the rock to be smooth in a process called abrasion
What is wind?
Sometimes seconds, sometimes years
These occur when tectonic plates push up against each other.
How long destructive weathering takes.
What is millions of years or seconds?
Creates U-shaped valleys and scrapes away soil and rock underneath them
Glacial/ice erosion
These are created from the action of wind and water depositing sand along the coast.
What are beaches?
What is the Ring of Fire?
Where 70% of the Earth's volcanoes are located; along the edge of tectonic plates; along the edge of Australia, Asia, North America, South America.
Created from tectonic plates moving against each other, and one sinking below the other. Magma eventually flows to the surface out of these.
What are volcanoes?
How destructive processes and constructive processes are the same.
Both change the surface of the earth, both can be slow or quick, both help create the world and how it is.
It causes landslides by pulling rock and sediment down hills and mountains
Gravity/gravity erosion
Landforms that occur from deposition of sediment carried by a river into a larger body of water. Commonly found at the mouth of rivers that go into larger bodies of water.
Name 2 volcanoes located in North America
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