Other Stuff!!!
Lava
Parts of a Volcano
Types of Volcanoes
Volcanic/Magma Landforms
100
This is the type of rock that forms when lava cools.
What is igneous?
100
This is the material that determines whether lava will be thin and runny or thick and sticky.
silica
100
This is the large collection of molten material located beneath a volcano.
11. What is a magma chamber?
100
This dome-shaped volcano forms after multiple quiet eruptions build up many layers of hardened lava.
16. What is a shield volcano?
100
This is what forms when a volcano collapses over its empty magma chamber.
21. What is a caldera?
200
The Hawaiian islands formed due to this.
What is a hotspot?
200
Molten material that has not yet reached the surface is called this.
7. Magma
200
This connects the magma chamber to the crater.
12. What is the pipe?
200
These large volcanoes form from a combination of quiet and explosive eruptions with alternating layers of lava and pyroclastic material.
17. What is a composite or stratovolcano?
200
This is a volcanic belt with a high occurrence of volcanoes surrounding the Pacific Ocean.
Ring of Fire
300
When an oceanic plate converges with a continental plate, which plate will sink and turn into magma? What type of zone is this?
Oceanic Plate/Subduction Zone
300
Thick, sticky lava is high in this.
Silica
300
These are openings on the surface of the volcano where lava pours out.
13. What are vents?
300
This steep-sided volcano forms from layers of pyroclastic material ejected from explosive eruptions.
18. What is a cinder cone volcano?
300
Mount Lassen erupted at the beginning of the last century. Is Lassen considered active, dormant, or extinct?
active
400
This is a dangerous material ejected from a volcano about the size of a grain of sand which can break plane engines.
What is volcanic ash?
400
Describe the differences between Pahoehoe and A'a lava.
9. Pahoehoe is hot, runny and smooth, while A'a is cooler and chunkier.
400
This is the central vent of a volcano.
14. What is the crater?
400
This type of volcano forms when many quiet eruptions pour out of a large crack, creating large, flat, elevated area.
19. What is a lava plateau?
400
How was the Modoc Plateau in Northern California formed?
Lava Plateau
500
Yosemite was carved out of a giant one of these.
Batholith
500
What causes volcanoes to erupt?
pressure from expanding gases
500
Erta Ale is a volcano formed where two plates move away from each other. What type of zone is this?
divergent
500
A volcano that is not currently erupting, but may erupt in the future is considered to be this.
20. What is dormant?
500
When magma hardens in the pipe of a volcano, it can form this.
25. What is a volcanic neck?
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