Earthquakes
___________ are vibrations in the ground caused by movements along the faults.
What are earthquakes
Fractures in Earth’s crust allow magma to reach the surface cause ___________
What are volcanoes
A _______ fault pulls rocks apart; the rock above the fault moves down.
What is normal fault
The supercontinent that consisted of all present day continents.
What is Pangea
Volcanoes and earthquakes occur in the ________ of the Earth.
What is crust
Which type of waves are the least destructive?
What are P waves
__________ is how quickly or slowly lava flows from an erupting volcano.
What is viscosity
________ are breaks in Earth's lithosphere
What are faults
Name the factors that can influence the viscosity of lava.
What are amount of water, temperature and amount of gas content.
a high, level area built up over time from seeping out of several cracks, traveling a distance and solidifying.
What is lava plateau
________ ________ are waves that carry energy of an Earthquake away from the focus.
What are seismic waves
___________ is molten rock on the earth's surface
What is lava
_______ ________ ________ makes new crust at the bottom of the ocean at a divergent boundary.
What is sea floor spreading
___________ is the process of one plate sliding under another plate at a convergent boundary.
What is subduction
During an ________ _________, magma with trapped gases builds up pressure an explodes with incredible force.
What is explosive eruption
Which type of waves are the most destructive and has the highest amplitude?
_________ is molten rock beneath the earth’s surface.
What is magma
Earth’s internal thermal energy causes __________ _________.
What are convection currents
Mountains form at the _________ __________ as plates push together.
What is convergent boundary
A _______ __________is formed when lots of lava flows freely from a vent and spreads out widely.
What is shield volcano
Earthquakes, volcanic eruptions and creation of mountains are all results of ______ _________.
What are plate movements
A _________ ________ is a volcano that is not active but may become active.
What is dormant volcano
A _________ _________ is a force that push two blocks together, and the rock above the fault moves up.
What is reverse fault
_________ waves are the second fastest, second most destructive and have the second highest amplitude.
What are S waves
______ ________ are compression waves that travel through solids and liquids compressing and expanding the material they travel through.
What are P waves