History
Which scientist first theorized that the continents of Earth were able to move and had once formed one large continent known as Pangea?
Alfred Wegener
How do plate tectonics cause earthquakes?
The plates shift causing the ground to shake
Which type of plate movement results in the formation of mountains?
convergent plates
The patterns in this help scientists support the theory of plate tectonics.
the crust (soil)
What is the name for one of the most evident divergent plate boundaries in the world?
Mid Ocean Ridge
What was missing from Wegener's argument for plate movement that prevented his theory from being accepted by the scientific community?
An explanation of how plate movement occurred (an explanation of the mechanics)
Which type of waves do scientists use to measure the magnitude of earthquakes?
Seismic waves
Mountains formed on a land mass would be formed by which type of convergent plate motion?
collision (continent-continent)
What type of heat transfer is the main cause of plate movement?
convection
Which plate generates new crust?
Divergent
What evidence did Wegener give to support his theory?
Shape of continents, Fossils, Rock/ soil layers, Ancient climate patterns
This is the term used to describe the area where convergent plates have resulted in many active volcanoes.
the Ring of Fire
Volcanoes form in the middle of the ocean due to this type of convergent plate movement.
Subduction (oceanic-continent)
Scientists have found various of these that help show that similar species were present all over the world.
fossils
This is the name for the major fault line in California.
San Andreas Fault
What was the name of the super-continent that is believed to have existed?
Pangea
California experiences a lot of earthquakes due to which type of plate movement?
transform plate movement
This is the term used to describe when one layer of the Earth's crust is forced down into the mantle.
subduction
The existence of glacial marks on some continents indicate that this substance must have been present on that continent despite it currently being near the equator.
ice (glaciers)
What type of landform results from oceanic-continental plate movement (subduction)?
volcanoes
What do we know now is the cause of the movement of the plates?
convection currents
What is the term for a natural disaster caused by an earthquake that occurs under the ocean?
a tsunami
During subduction, which type of crust will sink into the mantle?
oceanic crust
How can we use a map to help support the theory of plate tectonics and the existence of Pangea?
by observing the shapes of the continents (they fit together like a puzzle)
What causes the various temperatures within the Earth's asthenosphere that results in the convection currents that move tectonic plates?
radioactive decay