What is the name of the molten rock that reaches the surface and erupts from a volcano?
What is lava?
What geological feature forms at mid-ocean ridges?
What is new oceanic crust?
What type of formation creates new oceanic crust?
What is an Oceanic-Oceanic Divergent boundary?
What are the two main types of seismic waves?
What are P-waves and S-waves?
What is the name of the location at which magma is stored prior to an eruption?
What is the Magma Chamber?
Which scientist proposed the theory of plate tectonics that includes seafloor spreading?
Who is Harry Hess?
What type of boundary produces the most earth quakes?
What is a transform boundary?
Which type of seismic wave travels the fastest?
What are P-waves?
What is magma stuck in between layers of rock called?
What is Sill?
How do magnetic stripes on the ocean floor provide evidence for seafloor spreading?
What is they show patterns of magnetic reversals?
What type of land formation is produced at a Continental-Continental Divergent Boundary?
What is a rift valley?
How do scientists use seismic waves to locate the epicenter of an earthquake?
What is by measuring the difference in arrival times?
What is the term for a volcanic eruption that is explosive and produces ash and pyroclastic flows?
What is a stratovolcano eruption?
What is the name of the process that occurs when tectonic plates pull apart?
What is divergent boundary formation?
Where is the most famous rift valley in the world located?
What is the name of the instrument used to measure seismic waves?
What is a seismometer?
Name one type of volcano that is characterized by its broad, gently sloping sides.
What is a shield volcano?
What evidence suggests that seafloor spreading is occurring?
What are age differences in oceanic crust?
Describe Subduction and what causes it.
Open response
What type of wave is an S wave?
What is a Transverse Wave?