This plate boundary can create trenches at the sea floor
What is a convergent boundary
100
This classification is used for rocks with large and visible crystals
What is coarse
100
This type of scientist studies earthquakes
Who is a seismologist
100
This oceanic feature is where seafloor spreading originates
What is a mid ocean ridge
200
This type of volcano is the smallest of the three we have learned about
What is cinder cone volcano?
200
This type of plate boundary is found at the San Andreas fault
What is transform boundary
200
An igneous rock is classified this if it has a high silica content
What is felsic/ granitic
200
This force causes earthquakes
What is stress
200
One of the ways scientists can measure the time in which oceanic crust was formed
What is by finding the pattern of the rocks in which the magnetic force has pulled the iron?
Why is by measuring the amount of sediment build up above crust
300
The most explosive volcano
What is composite volcano
300
The African Rift Valley is created by this type of boundary
What is a divergent boundary?
300
This type of rock is commonly glassy, vesicular, or fine
What is an extrusive rock
300
This scale is used to measure how powerful an earthquake's waves are
What is the Richter scale
300
This current causes magma to rise cool into crust and later melt back into magma
What is convection current?
400
This type of eruption happens at cinder cone volcanos.
What is a Strombolian eruption?
400
A plate boundary that does not have earthquakes
What is none of them
400
A rock that was formed both inside the earth and on or above the surface is called this
What is porphyritic?
400
This wave is the slowest earthquake wave
What is the surface wave?
400
This type of fossil can be used to prove continental drift
What is the fossil of a land mammal or land plant?
500
This type of pyroclastic is between the size of a pea and a walnut
What is lapilli?
500
These are the 3types of convergent boundaries
What are c-c, o-o, and c-o?
500
This rock is black but also felsic
What is obsidian?
500
This process is a method is used to measure the size and find the epicenter of an earthquake
What is triangulation?
500
This guy came up with the theory of continental drift