Show:
Parts of a Volcano
Volcanic Landforms
Vocabulary
The Creation of Volcanoes
Eruptions
100

magma that flows out onto Earth's surface.

What is lava?

100

What are the 3 types of volcanoes? 

The 3 types of volcanoes: Cindercone, Shield, and Composite

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

What do we call those who study and research volcanoes? 

Who are volcanologists? 

100
What are active volcanoes?
Active volcanoes are the volcanoes that erupt constantly.
200

a place where fluid collects, and volcanic materials erupt.

What are magma chambers?

200

What is a cinder cone volcano?

This type of volcanic landform is made up of small rock particles, or cinders. It is characterized by a small cone with steep sides.

200

Particles of rock, solidified lava, and ash of all different sizes.

What is tephra?

200

Where do most volcanoes occur?

What are Plates.

200
What are dormant volcanoes?
These volcanoes have become inactive, but people are not certain that they will not erupt again.
300

Openings through which volcanic materials erupt are called ______. They are located near the peak of the mountain.

what is a vent? where is it located?

300

What is a shield volcano?

This type of volcano is made up of layers of lava rocks. It is created slowly which makes it broad with gentle sloping sides.

300

An area in Earth’s mantle that is hotter than other areas.

What is a hot spot?

300

 Is the area around the Pacific Plate where earthquakes and volcanoes are common.

What is the Ring of Fire?

300

One factor that determines whether a volcanic eruption will be quiet or explosive is the ____.

What is the amount of water vapor and other gases trapped in the magma?

400

a steep-walled depression around the vent

What are craters?

400

This type of volcanic landform is made up of layers of lava flows alternating with layers of ash, cinders, and rocks. It is steep. 

What is a composite volcano?

400

_____produces explosive eruptions. 

_____ produces quiet eruptions.

What is high silica?

What is poor silica? 

400

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.

400

TRUE or FALSE: A liquid with a high viscosity will also have a high flow rate (it will flow faster).

What is false? 

500
Define Subduction Zone. Where is it located?
subduction occurs when two plates collide. the denser; heavier, palte slides under the other plate and becomes part of the mantle.
500

Which type of volcanic landform is the most destructive? Name an example of one. 

Composite volcano. Mt. St. Helens is a composite volcano.

500

Which type of lava is more fluid? It develops a smooth skin and forms ropelike structures.

What is Pahoehoe?

500
How do hot spots form new land? Name a landform created by hot spots.
Hot spots erupt and release magma. As magma comes out it becomes lava and hardens into landforms. Hawaiian islands are created by hot spots.
500

What kind of volcanic eruption occurs when basaltic magma is present?

What are quiet eruptions?