A supercontinent from millions of years ago
pangaea
He proposed the theory of continental drift.
Alfred Wegener
When one plate goes under another.
Subduction
When two plates slide past eachother.
Transform
When to plates come together.
Convegent
When two plates go away from eachother.
Divergent
A deep _______ is formed when one plate subducts under another.
Trench
When to continental plates collide they form what?
mountains
Transform boundarys may cause _________.
earthquakes
Tectonic plates may only move 2-3 __________ a year.
centimeters
Divergent plate boundaries start in the middle of a single __________ plate.
continental
There are ______ types of convergent boundaries based on the types of plates colliding
Three
When two plates diverge the ocean floor will be created where?
Mid-oceanic ridge
What is formed when a continental plate nd oceanic plate converge?
Volcanic arc
A scientific theory that describes the large-scale motion of Earth's lithosphere.
Plate tectonics
An area in the Earth's mantle where a column of hot magma rises up to melt through the crust, resulting in volcanic activity.
Hot spot
pieces of Earth's crust and uppermost mantle, together referred to as the lithosphere.
Tectonic plates
pieces of Earth's crust and uppermost mantle, together referred to as the lithosphere.
Tectonic plate
What layer are the plates made up of?
Lithosphere
How many type of plate boundries is there?
three