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100
This is what divergent plate boundaries do.
What is move apart?
100
This is what convergent plate boundaries do.
What is move together?
100
This is formed when a mountain collapses at the top because the vent or chamber is empty.
What is a caldera?
100
This is under the volcano, where magma collects.
What is a magma chamber?
100
This is the opening at the surface where molten rock and gas leave the volcano.
What is the vent?
200
This is evident when magma is low in silica.
What is darker in color?
200
Compression forces in the Earth's crust produces this.
What are reverse faults?
200
This is the point directly above an earthquake's focus.
What is the epicenter?
200
This property is given to minerals that split easily along flat surfaces.
What is cleavage?
200
These are the only other bodies in the solar system where volcanic eruptions have been observed.
What are Io and Triton?
300
This is where the Ring of Fire is located.
What is the Pacific Ocean?
300
This is the state a volcano is in when it is not active.
What is dormant?
300
This theory states that pieces of the Earth's crust are in constant motion.
What is plate tectonics?
300
This kind of rock develops from heat and pressure beneath the Earth's surface.
What is metamorphic rock?
300
This is a kind of igneous rock formed when magma hardens beneath the surface.
What is intrusive rock?
400
This is the process of melting ore to separate useful metal from other elements.
What is smelting?
400
This measures horizontal movement of the ground along a fault.
What is a creep meter?
400
This mineral has a rating of 10 on the Mohs hardness scale.
What is diamond?
400
This is where sea-floor spreading occurs.
What is both sides of the mid-ocean ridge?
400
This is part of the pliable layer called the asthenosphere.
What is the mantle?
500
This is an example of clastic sedimentary rock.
What is conglomerate?
500
These are the vibrations that travel through Earth, carrying the energy of an earthquake.
What are seismic waves?
500
These are produced when magma is cooled deep underground.
What are large crystals?
500
These are the three types of heat transfer.
What are radiation, conduction, and convection?
500
This is why limestone (fossilized coral) is sometimes found on continents.
What is the movement of the Earth's plates uplifting the ocean floor and becoming dry land?