Parts of a Volcano
Volcanic Landforms
Vocabulary
The Creation of Volcanoes
Eruptions
100
What is lava?
Lava is magma that flows out onto Earth's surface.
100

what three kinds of volcanoes Name all.

There are 3 types of volcanic landforms: Cindercone, Shield, and Composite/strato

100
What is Magma?
Molten rock beneath the earth's surface.
100

Where do most volcanoes occur?

Most volcanoes, occur along the boundaries between shifting tectonic plates.

100

What are active volcanoes?

Active volcanoes are the volcanoes that erupt constantly.

200

What are magma chambers?

Magma chambers are where magma is stored

200

What is a cinder cone volcano?

smallest volcano, steep low

200

What is Ring of Fire?

Ring of volcanoes in the Pacific Ocean

200
Why does the rock in the mantle melt?
As the tectonic plate moves under another (subduction zone), the rock in the mantle melts and becomes magma.
200

What are dormant volcanoes?

These volcanoes have become inactive, but people are not certain that they will not erupt again.

300

what is a vent? 

Openings through which ash, lava, steam come from


300

What is a shield volcano?

 it's not as steep as cinder cone volcano and is created slowly that's why it has gentle and broad sides.

300

What is a hot spot?

A region of volcanic activity in the middle of a tectonic plate.

300
Why does magma rise?
magma, the melted mantle, rises because it is filled with gas and is less dense than the solid rock around it.
300

What are active volcanoes?

Volcanoes that can & will erupt at fairly frequent intervals.

400

What are craters?

Craters are bowl-shaped depressions. 

400

What is a composite volcano?

This type of volcanic landform is made up of layers of lava flows alternating with layers of ash, cinders, and rocks. it is a combination of cinder cone and shield volcanoes.

400

What is a volcanic island arc?

A long curved chain of volcanic islands.

400

what causes magma from gradually and slowly rising to the peak of the mountain?

great pressure from gases. When the pressure is released, volcanic materials suddenly erupt and move out to the surface.

400

What are Extinct Volcanoes?

Volcanoes that have not erupted in recorded history are considered to be extinct volcanoes.

500

Volcanoes form when ________________

tectonic plates move

500
Which type of volcanic landform is the most destructive? Name a volcanic landform that was developed this way.
Composite volcano. Mt. St. Helens is a composite volcano.
500

Ring of Fire,where is it located?

 Pacific Ocean Basin.

500

Name the park that is formed on hot spots.

Yellowstone National Park

500

Three types of volcano eruptions?

Active: erupt constantly Dormant: have become inactive but might erupt in future Extinct: have not erupted within recorded history