Volcanoes and Plate Tectonics
Volcanic Activity
Volcanic Landforms
Volcanoes in the Solar System
100

What is a volcano?


A weak spot on the crust where magma comes out

100

What do you call the bowl shaped area at the top of a volcano?


Crater

100

Describe a shield volcano.


A wide, gently sloping mountain

100

What are the dark, smooth areas of the moon?


Lava

200

What is the difference between magma and lava?

Lava is magma that has come out of the ground

200

What causes magma to come out of the Earth?

Gases dissolved in the molten material

200

Volcanic rock breaks down into rich soil. What does "rich soil" mean?

Fertile or able to support plant growth

200

What type of volcanoes do they have on Mars?

Shield and cone

300

Volcanoes form at what two plate boundaries?


Divergent and Convergent

300

What kind of eruption will you have if the magma is thick and sticky?

Explosive

300

What is a batholith?


A mass of rock formed when a large body of magma cools in the crust

300

What is Theia Mons?

The biggest volcano on Venus

400

What is a "hot spot"?

Magma burns through the middle of a tectonic plate

400

What are the three stages of a volcano?

Active, dormant, extinct

400

What is a caldera?

A huge hole left by the collapse of a volcano

400

What is the name of the biggest volcano in the solar system?

Olympus Mons

500

What is the "Ring of Fire"?

A volcanic belt that rings the Pacific Ocean

500

What is geothermal energy?


Energy created by magma heating water

500

This landform is named after a part of the body, what is it?


Volcanic Neck

500

What two moons have we observed volcanic eruptions on?


Io and Triton

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