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Volcanos

TermDefinition
1.Volcanos A weak spot in the crust where molten material, or magma, comes up to the surface
2.Lava When magma reaches the surface
3.Magma A molten mixture of rock-forming substances, gases, and water from the mantle
4.Ring of Fire Many volcanoes that rim the Pacific Ocean
5.Hot Spot An area where material from deep within the mantel rises and the melts, forming magma
6.Shield Volcano When thin layers of lava pour out of a vent and make layers on top of one another until it slowing builds a wide, sloping moutain
7.Composite Volcano When ash, cinders, and bombs pile up around the vent, forming a steep, cone-shaped hill or mountain
8.Cinder Cone Volcano When ash, cinders, and bombs form alternating layers that build up into a tall, cone-shaped, mountain
9.Sill When magma squeezes between layers of rock and hardens
10.Dike When magma forces itself across rock layers and hardens
11.Batholith A large body of magma cools inside the crust
12.Lava Plateau When runny lava flows out of cracks of volcanoes and travel a long distance before it cools. Then after millions of years the layers build up over a large area
13.Extinct Unlikely to erupt again
14.Dormant Volcanoes that are quiet, but could awaken in the future
15.Active Erupting or showing signs of erupting in the near future
16.Element A substance that cannot be broken down
17.Vicosity A measure of a resistance in a fluid
18.Silica A substance that is in magma that makes magma different
19.Pahoehoe Hot, Light color lava that moves fast
20.AA Cool, dark color lava that moves slowly
21.Compound A thing that is composed of two elements/ a mixture
22.Volcanic Ash Fine, rocky speaks of ash made from a volcano
23.Magma Chamber A pocket that collects magma in the volcano
24.Crater A bowl-shaped area that may form at the top of a volcano around the central vent
25.Vent The opening that molten rock and gas leave the volcano
26.Pipe A long tube in the ground that connects the magma chamber to Earth's surface
27.Caldera A hole left by the collapse of a volcanic mountain
28.Hotspring When ground water is heated by a nearby body of magma rises to the surface and collects in a natural pool
29.Geyser A fountain of water and stream that erupts from the ground
Created by: 1965062564
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