Volcanoes and Plate Tectonics
Volcanic Activity
Volcanic Landforms
Volcanoes in the Solar System
All Sections
100
An opening on Earth’s surface where magma escapes from the interior.
What is a volcano?
100
This occurs when gases trapped in magma rush through an opening at the Earth’s surface, carrying magma with them.
What is an eruption?
100
Rich and fertile soil in which plants can grow heartily.
What is soil from lava and ash.
100
The volcanoes on these planets are similar to volcanoes on Earth.
What is Mars and Venus?
100
What is a volcano called when it is unlikely to erupt again?
What is extinct?
200
Magma that reaches Earth’s surface.
What is lava?
200
The narrow, crack in the crust through which magma rises to the surface.
What is a pipe or conduit?
200
The huge hole left by the collapse of a volcanic mountain.
What is a caldera?
200
This moon has a active volcano.
What is Triton?
200
This occurs when an explosive eruption hurls out ash, cinders, gases, and bombs.
What is pyroclastic flow?
300
(True, false) Volcanoes can form underwater, on land, and on other planets.
What is true?
300
The energy source created by hot magma.
What is geothermal energy?
300
Volcanoes that do not have a flat top are...
What is a shield volcano, cinder cone volcano, and a composite volcano.
300
Other moons that have volcanoes.
What is Jupiter's moon, Io, and Neptune's moon Triton.
300
The bowl-shaped area that may form at the top of a volcano around the volcano's central vent.
What is a crater?
400
Most volcanoes occur near these boundaries.
What is plate boundaries.
400
These three things determine whether magma is thick or fluid.
What is temperature, gas, and silica.
400
Both these landforms created by magma form from cooled magma below the surface.
What are batholiths and dome mountains?
400
The largest volcano in the solar system, a shield volcano.
What is Olympus Mons
400
This landform formed by magma forces itself across rock layers and hardens.
What is a dike?
500
The Philippines, Japan, and the Caribbean islands are all considered this...
What is an island arc?
500
This type of eruption is quiet, fast-moving, and very hot. It creates wrinkles, billow, and rope-like coils when the lava dries.
What is Pahoehoe?
500
This landform formed by magma squeezes between layers of rock and dries horizontally.
What is a sill?
500
This makes the eruptions on Triton different than the eruptions on Earth.
What is nitrogen?
500
During a volcanic eruption, the gases dissolved in magma rush out, carrying the magma with them. As the agma rises the pressure...
What is decreases.
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