1. Chapter 6 Review
Volcanoes

2. Volcanoes The three stages in the life of a volcano are:
Make sure you can describe each stage of a volcano’s life cycle
The three main types of volcanoes are:
Make sure that you know the differences between these types of volcanoes and can describe them.
Active, dormant, and extinct
Shield, composite, and cinder cone

3. Volcanoes
Volcanoes can have two main types of eruptions. They are __________ and ____________.
What causes an eruption to be either quiet of explosive?
Another name for an explosive eruption is a
Quiet and explosive
The amount of silica in the magma – high is silica make explosive eruptions and low in silica makes quiet eruptions
Pyroclastic flow

4. Volcanoes
The major volcanic belt that surrounds the Pacific Ocean is called the ____________
What is the difference between magma and lava?
A weak spot in the crust where molten material called magma reaches the surface is called a _______
Ring of Fire
Magma is inside the Earth, lava is on the surface.
Volcano

5. Ring of Fire

6. Volcanoes
Due to subduction, a chain of volcanic mountains may rise to the surface of the ocean resulting in a string of islands called an _______________
Some islands form the way that the Hawaiian islands formed over a crack far from a plate boundary. These areas are called ______________.
Island arc
Examples are Japan, New Zealand, The Philippines, the Aleutians and others
Hot Spots

7. Volcanoes Name the parts of a volcano
Magma chamber, pipe, vent, side vent, crater, lava flow, ash cloud
Make sure that you know where they would fit on this diagram.

8. Volcanoes
What is the name for the fountain of water and steam that erupts from the ground due to heating within the Earth?
What is the word for an old person, especially an eccentric old man.
A geyser
A geezer

9. Volcanoes
A huge hole left in the ground by the collapse of a volcanic mountain is called a ___________.
When magma hardens in a volcano’s pipe and eventually becomes exposed due to erosion, this landform is left behind.
Caldera
A volcanic neck

10. Volcanoes
Magma that forces itself between or across rock layers can form these landforms.
A huge mass of rock formed by hardened, cooled magma can help form a mountain range like a large portion the Sierra Nevadas. It is called a __________.
Dikes and Sills
Batholith

11. Volcanoes
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