Continental Drift
This hypothesis states continents were once joined and drifted apart.
What is continental drift?
The process where new ocean floor forms at mid-ocean ridges.
What is sea-floor spreading?
Boundary where plates move apart.
What is a divergent boundary?
Stress that pulls rocks apart.
Volcano made of layers of lava and ash.
What is a composite volcano?
What is the name of the supercontinent that once existed?
What is Pangea?
Molen rock that rises and hardens forms new _____.
What is new crust?
Boundary where plates collide?
What is a convergent boundary?
Stress that pushes rocks together.
What is compression?
Volcano made of loose, ashy material.
What is a cinder cone volcano?
Name one piece of evidence showing similar remains found on different continents.
What are fossils, mountain ranges...
The sinking of the ocean floor into the mantle is called this.
What is subduction?
Boundary where plates slide past each other.
What is a transform boundary?
Fault type found at transform boundaries.
What is strike-slip fault?
Volcano with slow, steady eruptions.
What is a shield volcano?
Mountains ranges on different continents appear to do this.
What is the Atlantic Ocean?
Boundary that commonly causes earthquakes.
What is transform boundary?
Stress that pushes rocks in opposite directions.
What is shearing?
Volcano common at hot spots.
What is a shield volcano?
Fossils of tropical plants in cold regions show past _____ changes.
What are climate changes?
Plates move due to these currents in the mantle.
What are convection currents?
Boundary where subduction occurs.
What is convergent boundary?
Landform created at divergent boundaries.
What are mid-ocean ridges or rift valleys?
Type of volcano formed when lava emerges from a new vent.
What is a lava plateau volcano?