Volcanoes
An opening in the earth's crust through which lava, volcanic ash, and gases escape.
What is a volcano?
The process that moves bits of rock or soil from one place to another.
What is erosion?
A natural process that slowly breaks apart or changes rock.
What is weathering?
The process by which sediments, soil, and rocks are added to a landform.
What is deposition?
An intense shaking of Earth's surface.
What is an earthquake?
Volcanoes spew hot, dangerous gases, ash, lava, and rock that are powerfully destructive.
What happens during a volcanic explosion?
When dirt is left exposed to strong winds, hard rains, and flowing water.
What causes erosion?
When a rock is exposed to physical processes that have an effect on it, such as changes in temperature or exposure to wind, rain, and wave effects.
When does weathering happen?
Occurs when the forces moving sediments are no longer able to overcome the forces of gravity and friction.
When does deposition occur?
When two pieces of the earth's crust suddenly move past one another.
What causes an earthquake?
Magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth's surface.
What makes lava rise?
Eroded dirt gets put somewhere new.
What happens after erosion?
Chemicals in rainwater making changes to the minerals in a rock.
What is chemical weathering?
Creates new land.
What are the effects of deposition?
Around the edges of the Pacific Ocean,
What place do earthquakes happen?
Molten rock that is underground and lava for molten rock that breaks through the Earth's surface.
What is magma?
Water, wind, ice, and gravity.
What are the four main causes of erosion?
Rocks crumbling due to rain, wind, or other atmospheric conditions.
What is mechanical weathering?
Desublimation.
What is deposition also called?
Do not move from where you are.
What not to do during an eaethquake?
When one tectonic plate moves under another.
What causes volcanoes to form?
It is the process in which sediment builds up and creates fertile land.
What positive effects does erosion have?
Wind can cause weathering by blowing grains of sand against a rock.
What causes the most weathering?
Creates many types of landforms on earth.
What is the importance of deposition?
Moment Magnitude scale.
What measurement is used to measure earthquakes?