What is the Earth's thinnest layer?
Crust.
What is continental drift?
Describes how the continents moved over time and drifted apart from each other.
Name the type of tectonic boundary above.
Convergent Plates.
___________ forces formed the large volcano known as the Canadian shield.
Tectonic.
What is the Earth's largest layer?
Mantle.
How many major tectonic plates are there?
7
Name the tectonic boundary above.
Divergent plates.
What type of tectonic boundary caused the orogeny (mountain formation) of the Appalachian Mountains?
Convergent plates.
The Earth's core is the hottest and ________ part of the Earth.
Densest.
Pangaea was referred to as what?
Supercontinent.
What causes tectonic plates to move?
Pressure from the Earth core's heat.
The continental drift took place over ____ million years ago.
200
What is the Earth's mantle composed of?
Rock, minerals and water.
What does the word 'Pangaea' mean in Greek?
All Earth.
Provide an example of lateral plates in the world.
San Andreas Fault.
What caused the volcano (Canadian Shield) to erode down?
Rain and water.
The Earth core's temperature can reach up to ______o C.
6,000o C
Tectonic plates naturally move __ - __ centimeters per year.
2 - 15.
What causes divergent plates?
Convection currents.
What plate collided with the North American plate to form the Western Cordillera?
Pacific plate.