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100
What do plate tectonics look like?
puzzle pieces
100
Iceland has a _____ plate boundary running through it middle
divergent
100
What is an example of a transform boundary?
San Andreas Fault
100
What is below the lithosphere
What is asthenosphere
100
What is material erupted to fill gaps between plates called?
What is magma
200
How many major plates is the Earth's crust divided into?
12
200
How are volcanoes formed?
subduction, rifting, hotspots
200
What is it called when 2 plate boundaries collide?
convergent
200
True of False: Oceanic crust is very old
What is true
200
What is the deformation of the crust as a consequence of plate interaction?
What is plate tectonics
300
What is below the lithosphere?
asthenosphere
300
_____ _____ ______ are hot mantle plumes breaching the surface in the middle of a tectonic plate
hot spot volcanoes
300
How do we know what the earth is made of?
What is geological surveys
300
What is a subducting plate bent downward?
What is trench
300
How long ago did the continents start to grow rapidly?
What is 2.5 billion years
400
What are the the 3 types of plate boundaries?
divergent, convergent, transform
400
____-_____ ______ ______ is when 2 oceanic plates collide
Ocean-ocean plate collision
400
what is it called when continents slide past each other?
What is transform
400
True or False: The Earth is not cooling anymore
What is False
400
When a plate sinks to the mantle what is that called?
What is subduction zone
500
What country is an example of continental rifting?
Iceland
500
What do continent-continent collisions form
mountains
500
How does continental drift caused?
What is moving tectonic plates
500
What do scientists think the oceans formed?
What is our second atmosphere
500
What are volcanoes formed by?
What is Subduction drifting