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Volcanos
Stuff
21
Science
7th Grade
03/28/2014

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Term
Volcano
Definition
An opening in the Earth’s crust that erupts gases, ash and lava
Term
Vent
Definition
Opening where magma escapes
Term
Crater
Definition
Steep sided depression inside a volcano
Term
What is the most common boundary a Volcano is found on?
Definition
Convergent Boundaries
Term
What is the most uncommon boundary a Volcano can be found on?
Definition
Divergent Boundaries
Term
What is a Hot Spot?
Definition
Weak spots in crust I.e. Hawaiian Islands
Term
What does the amount of water vapor and gas do to volcanoes?
Definition
More water and gas more explosive
Term
What is silica?
Definition
"Glue"
Term
What can silica do?
Definition
It can effect the explosiveness of a Volcano's eruption
Term
What is a Shield Volcano?
Definition
It has a gentle slope (mostly lava)
Term
What is a Cinder Cone Volcano?
Definition
It has a steep slope (mostly ash)
Term
What is Tephra?
Definition
Clumps of airborne ash
Term
What is a Composite Cone
Definition
It has an intermediate slope (ash and lava mix)
Term
What does V.E.I stand for?
Definition
Volcanic Explosivity Irnoes
Term
What was the largest Volcanic Eruption in historic time?
Definition
Mount Tamboro
Term
What was the Volcano that buried Pompeii?
Definition
Mount Vesuvuis
Term
What was Pompeii buried in?
Definition
Ash
Term
Between 1600 and 1982 where in the world have the most people died as a result of volcanoes
Definition
Indonesia
Term
What is the largest volcano in the world
Definition
Mona Loa
Term
What was the most destructive Volcano in U.S history
Definition
Mount St. Helans
Term
True or False: Tephra effects the explosiveness in volcanos
Definition
False, Tephra is ash that clumps up and falls from the sky from a volcano
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