Volcanoes
Vocabulary
Earthquakes
Plate Boundaries
Eruptions
100
This volcano has a gentle slope
What is shield volcano
100
This is an underwater mountain system that has a rift or valley
What is Mid Ocean Ridge
100
This device measures the seismic activity of an earthquake
What is a seismograph
100
This boundary type is when the plates are moving apart
What is divergent boundary
100
Molten rock that is ejected during a volcanic eruption
What is lava
200
What chain of islands was built from volcanic eruptions
What is Hawaii
200
Molten rock that is found below the Earth's surface
What is magma
200
These are small earthquakes that occur after the large earthquake
What is aftershock
200
The land mass known as a supercontinent
What is Pangaea
200
The magma can clog this type of volcano because of the low viscosity
What is composite
300
This type of volcano is the largest (tallest).
What is composite volcano
300
What is the measure of resistance of lava
What is viscosity
300
A scale used for measuring the damage of an earthquake by calculating the cost done on the Earth’s surface
What is Mercali Scale
300
This boundary type is when the plates are colliding with each other
What is convergent boundary
300
This type viscosity doesn't allow lava to travel very far
What is high viscosity
400
This volcano type has the most violent eruptions
What is cinder cone
400
These are the first waves to arrive after an earthquake
What is P Wave (Primary Wave)
400
These are energy waves that travel through the Earth as a result of an Earthquake
What is seismic waves
400
The San Andreas Fault is this type of boundary
What is transform boundary
400
Small bits of rock and glass that is emitted from a volcanic eruption
What is volcanic ash
500
This volcano erupted in 1980 and lost 1300 feet in height after the eruption
What is Mt. St. Helens
500
This type of zone occurs at convergent boundaries when a continental plate slides over an oceanic plate
What is subduction zone
500
This theory is when the shearing stress exceeds the strength of the rock, the rock ruptures and an earthquake happens.
What is elastic rebound
500
The process when more dense colder material sinks as the less dense hotter material rises
What is convection current
500
How long did the longest volcano eruption last
What is 9 years
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