Show:
Volcanoes
Shaping The Land
Surfs up
Hot Stuff, be careful!
Earthquakes
100
The _________________ is the opening where magma exits the volcano.
What is vent
100
A bowl shaped volcanic feature
What is the caldera
100
What are seismic waves that travel through the planet called?
What is body waves
100
What two factors affect whether or not solid rock in the mantle melt?
What is... having decreased pressure to lower the melting point of rock or the addition of water increases the ability of the rock to melt.
100
Stick-slip motion between plates causes _____________ to occur.
What are earthquakes
200
This is the place where magma collects underground.
What is magma chamber
200
This forms when a mound of magma forms in a caldera
What is resurgent dome
200
What are the waves that travel along Earths surface called?
What is surface waves
200
What two factors determine the consistency of magma?
What is the amounts of silica and gas in the magma
200
The point directly below the epicenter of the earthquake is called
What is focus
300
What is the term used to describe melted rock from the mantle?
What is magma
300
The solid remains of magma of an extinct volcano
What is volcanic neck
300
How do scientists calculate the distance from a seismic station to the epicenter?
What is they use the difference between arrival times of p waves and s waves
300
What is the difference between a shield and composite volcano
A shield volcano is flat and wide and has runny magma. A composite volcano has steep sides and it is explosive when it erupts
300
A place where rock breaks and there is movement.
What is a fault
400
The pipe that magma leaving the magma chamber flows through is called the _____________.
What is conduit
400
At a _______________ boundary plates move away from each other.
What is divergent
400
These waves move from side to side and are responsible for damage during an earthquake
What is surface waves
400
Name the 3 phases of volcanoes and describe each.
What is active- about to erupt, erupting, or erupted recently Dormant- quiet volcano that may erupt someday. extinct- volcano that can no longer erupt
400
A place on Earths surface where the rock breaks during an earthquake is called the _________.
What is epicenter
500
Lava and ash layers from an eruption create a _________.
What is volcano
500
At a ________________ boundary plates move toward each other.
What is convergent
500
These waves arrive at seismic stations first.
What are P waves.
500
Name the three types of volcanoes.
What are composite, shield, cinder cone
500
Tremors that occur before an earthquake are called ________ while tremors that occur after are called ________.
What is foreshock, and aftershock