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More earthquakes
More plate movements
Volcanoes
More volcanoes
Misc.
100
Surface where rocks break and move.
What is a fault?
100
This animal fossil was found on the continents of South America and Africa supporting the Theory of Continental Drift.
What is mesosaurus?
100
Type of rock that forms from lava that has cooled and hardened.
What is igneous rock?
100
Molten rock at the Earth's surface.
What is lava?
100
The measurement of the energy released by an earthquake.
What is magnitude?
200
Builds up at points where rocks in a fault catch.
What is stress?
200
Evidence of glaciers left on hot climate continents such as Africa.
What are climate clues of continental drift?
200
Magma that is not silica rich.
What is basaltic?
200
Three types of tephra.
What are ash, cinders, and bombs?
200
Location on Earth's surface directly above the focus of an earthquake.
What is an epicenter?
300
Vibrations caused by rocks that break.
What is an earthquake?
300
Created at divergent boundaries on the ocean floor.
What is a mid-ocean ridge?
300
Opening on volcanoes where magma is pushed out.
What are vents?
300
Type of volcano formed from both explosive and quiet eruptions.
What are composite or stratovolcanoes?
300
An underwater mountain chain.
What is a mid-ocean ridge?
400
Instrument used to measure earthquakes.
What is a seismograph?
400
The San Andreas fault is an example of this type of boundary because two plates are sliding past each other.
What is transform boundary?
400
The two factors that decide whether a volcanic eruption will be explosive or quiet.
What are water vapor and silica?
400
Type of volcano create by quiet lava flows.
What is a shield volcano?
400
Area along a fault where rock that had been caught and then released creates an earthquake.
What is a focus?
500
The first seismic waves to arrive at seismograph stations.
What are primary wave?
500
The North American plate and African plates are moving away from each other creating this type of boundary.
What is a divergent boundary?
500
Hot liquid rock that rises to Earth's surface because it is less dense.
What is magma?
500
Type of volcano created by explosive eruptions of tephra.
What is a cinder cone volcano?
500
An example of a cinder cone volcano.
What is Paricutin in Mexico?