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23 Cards in this Set
- Front
- Back
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Types of volcanoes |
Shield Composite Cinder come
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Cinder cone volcano |
Large, tall with steep sides; violent, explosive eruptions of rock
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Shield volcano |
Low, flat structure; small, non-violent eruptions with flowing lava
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Composite/Strato volcanoes |
A combination of Shield and Cinder cone volcanoes; violent rocky explosions with flowing lava
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Active volcanos |
Release ash, magma and gas |
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Hot lava |
The magma which has reached the surface and flowed out of the volcano |
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Dormant |
Sleeping volcanoes |
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Techtonic plates |
Rock layers of the earth’s crust; when these plates shift or fracture, earthquakes and volcanoes may occur |
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Earthquakes |
Caused by movements on the earths surface. Techtonic plates shift creating seismic waves at the fault lines. Plates shift because of movements and heat from below. |
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Types of plate boundaries |
Divergent Transform Convergent |
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Divergent |
Plate boundary. Plates are pulled apart; islands may form and volcanoes may erupt |
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Convergent |
Plate boundary. Plates are pushed together sometimes under each other; Mountains and volcanoes may form. Earthquakes. |
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Transform |
Plate boundary. Slides passed each other; also called Faults; causes earthquakes |
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Landslide |
The sliding down of a mass of Earth or rock from a mountain or cliff. When the mass is wet, it’s referred to as a mudslide |
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Tsunami |
A long, high sea wave caused by an earthquake that has occurred within the oceanic crust |
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Weathering |
The breaking down of rocks because of the environment |
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Mechanical weathering |
The physical break down of rock into smaller pieces |
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Abrasion |
When rocks rub against each other, the rock becomes smoother |
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Chemical weathering |
The chemical break down of rock, such as chemical rain dissolving rock while forming caves |
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Oxidation |
Part of chemical weathering. Oxygen combining with other chemicals to form a new substance |
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Erosion |
The movement of weathered rock material |
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Deposition |
When eroded materials are dropped in a new location |
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Causes of weathering and erosion |
Wind, water, ice, animals and plants |
