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Volcanoes &Geography

VolcanicLandforms

Red, HotMag-ma

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Effects ofEruptionsEruptions

Clouds of hot ash and chunks of molten rock,

shooting out of a vent at high speed.

Characterized by calm rivers of red-

hot lava.

A hole in the Earth’s crust

through which magma rises to the

surface.

The area deep beneath the Earth’s

surface where magma collects.

During the 1980 eruption of this

volcano, 600 km2 of forest was flattened

and scorched.

The area surrounding the Pacific Plate

which contains almost 75% of the world’s

active volcanoes.

The newest Hawaiian island, still covered by

water.

The location of Mount Rainier.

Where volcanoes are most likely to form.

Places within tectonic plates that

are directly over columns of rising

magma.

These explosions usually pose a

greater threat to property than to

human life.

This can smother crops, causing foodshortages and loss

of livestock.

Many of these mayoccur as magma shifts and rises

within a volcano.

This can cause sunlight to be

blocked, resultingin a drop in global

temperatures.

This volcanic mud is created

when hot volcanic ash

mixes with water.

This type of volcano is made of only

pyroclastic material.

This type of volcano has

alternating layers of lava and tephra.

This type of volcano has

gently sloped sides and a wide base.

These landforms are created when

empty magma chambers collapse.

These are created when lava flows over a large area of land after it escapes from

a crack in the Earth’s crust.

This type of lava is runny and hardens with wrinkles that look like rope.

This element causes magma to thicken,

and sometimes block a volcano’s vent.

Magma will liquify when this decreases.

This lowers the melting temperature

of rock.

This causes hot magma rises to the

surface of the Earth.

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Hawaii’s Mauna Kea, the tallest mountain

on Earth, is an example of this.

What is an explosive eruption ?

What is a non-explosive eruption ?

What is a vent?

What is a magma chamber?

What is Mount St. Helens ?

What is The Ring of Fire ?

What is Loihi?

What is Orting, Washington?

What are convergent plate

boundaries?

What are hot spots?

What are non-explosive

eruptions ?

What is

volcanic ash?

What are small earthquakes ?

What is ash in the atmosphere following an

explosive eruption?

What is lahar?

What is a

cinder cone?

What is a composite volcano or stratovolcano?

What is a shield volcano?

What are calderas?

What are lava plateaus?

What is pahoehoe lava?

What is silica?

What is pressure?

What is

water?

What is lower density than the

surrounding rock?

What is a shield volcano ?