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Earth's Moving Plates
Plate Tectonics: A Unifying Theory
Earthquakes
Volcanoes
100
It's a Greek word that means "all land".
What is Pangaea mean?
100
It is the rigid outer part of Earth made up of rocks in the crust attached to the upper part of the mantle.
What is lithosphere mean?
100
Is the point below the surface of Earth where an earthquake begins.
What is the focus?
100
It is a volcano mainly made up of small rock particles or cinders.
What is a cinder cone?
200
Is the idea that a past supercontinent split apart into pieces, which drifted over time to their present locations.
What is continental drift?
200
Is the thin layer of solid rock that makes up the outermost part of Earth.
What is crust?
200
It is the point on the surface of Earth directly above the focus.
What is the epicenter?
200
It is a long narrow vent also called a fissure.
What is a vent?
300
They are scientist who studies Earth's origin, history, structure, composition, and processes.
What is a geologist do?
300
It is the thick layer of solid and molten rockthat lies beneath the crust.
What is the mantle?
300
It is a way of using information from at least three seismograph stations to find the location of the epicenter.
What is Triangulation?
300
It is made up of layers of lava rocks.
What is a shield volcano?
400
It is a addition of new rock that has built up a vast underwater moutain chain.
What is a mid-ocean ridge?
400
It is the central part of Earth.
What is the core?
400
It is a set of numbers used to describe the magnitude of an earthquake.
What is a Richter scale?
400
It is a never-ending cycle in which rocks are continually changed from one type to another.
What is a Rockcycle?
500
Is a place where molten rock, hot gases,and solid rocks erupt through an opening in Earth's crust.
What is a volcano?
500
Is the layer of semimolten mantle rock that lies directly below the lithosphere.
What is the asthenosphere?
500
It tells what people feel and observe when an earthquake occurs.
What is a Mercalli scale?
500
It is a conical volcano built up by many layers of hardened lava,tephra,pumice,and volcanic ash.
What is a composite volcano?