Volcanoes and Plate Tectonics
Volcanic Activity
Volcanic Landforms
Volcanoes in the Solar System
Potpourri
100
When magma reaches the surface, it is called this
What is lava?
100
The pocket beneath the volcano where magma collects.
What is the magma chamber?
100
A steep cone-shaped hill or mountain created by ash, cinders, and bombs piling up around a volcanoes vent.
What is a cinder-cone volcano?
100
What type of volcanoes form on Venus?
What are large, shield volcanoes?
100
A weak spot in the crust where molten material, or magma, comes to the surface.
What is a volcano?
200
A major volcanic belt, that rims the Pacific Ocean
What is the Ring of Fire?
200
Fast-moving, hot lava produced during a quiet eruption.
What is Pahoehoe?
200
A huge hole left by the collapse of a volcanic mountain.
What is a caldera?
200
The largest volcano on Venus?
What is Thei Mons?
200
Forms when groundwater heated by a nearby body of magma rises to the surface and collects in a natural pool.
What is a hot spring?
300
A string of islands formed by the volcanoes along a deep ocean trench
What is an island arc?
300
A material that is formed from the elements oxygen and silicon and is one of the most abundant materials in Earth's crust and mantle.
What is silica?
300
A wide, gently sloping mountain that is created from thin layers of lava pouring out of a vent and hardening over previous layers.
What is a shield volcano?
300
The largest mountain in the solar system.
What is Olympus Mons?
300
A tall, cone-shaped mountain in which layers of lava alternate with layers of ash.
What is a composite volcano?
400
An area where magma from deep within the mantle melts through the crust like a blow torch
What is a hot spot volcano?
400
Occurs when an explosive eruption hurls out ash, cinders, and bombs, as well as gases.
What is pyroclastic flow?
400
Forms when magma hardens in a volcanoes pipe and the softer rock around the pipe wears away.
What is a volcanic neck?
400
Two areas in the solar system (besides Earth) where volcanic activity has been observed.
What are Io (a moon of Jupiter) and Triton (a moon of Neptune)?
400
A clean, reliable energy source created by water heated by magma.
What is geothermal energy?
500
A long, underwater rift valley that winds through the oceans
What is the mid-ocean ridge?
500
What are the three stages of a volcano?
What is active, dormant, and extinct?
500
A mass of rock formed when a large body of magma cools inside the crust.
What is a batholith?
500
Two other planets where there is evidence of past volcanic activity.
What are Venus and Mars?
500
Magma that forces itself across rock layers hardens into a ______________.
What is a dike?
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