Vocabulary
How 'tightly packed' matter is
What is density?
Volcanic Islands are evidence of...
What is an oceanic-oceanic convergent boundary?
Earthquakes and Volcanoes are usually located in relation to these
What is a plate boundary
Compared to continental crust, oceanic crust is
What is more dense?
A number of rigid, but moving, pieces of Earth's crust
What are tectonic plates?
The layer where convection occurs
What is the mantle?
A trench is evidence of these 2 types of convergent plate boundaries
What are 'oceanic-oceanic' and 'oceanic-continental'?
The three plate boundaries are
convergent, divergent, transform
When continental crust collides with continental crust, both plates uplift because
What is 'they have the same density'?
When a more dense plate sinks below another plate
What is the subduction
Plates 'float' on top of this layer
What is the mantle?
'Deep earthquakes' are evidence of these 2 types of convergent plate boundaries
What are 'oceanic-oceanic' and 'oceanic-continental'?
Convection is caused by
When mantle material heats up , its density
What is decreases?
hot, less dense fluid rises while cooler, more dense fluid sinks
What is convection?
These 2 measurements increase as you move towards the center of the Earth
What is density and temperature?
Shallow earthquakes are evidence of this type of convergent plate boundary
What is continental-continental?
This is the mechanism (what causes) the plates to move
What is convection cycles in the mantle
When mantle material cools it does this
What is sink?
The area where two tectonic plates meet
What is the plate boundary?
These 2 states of matter are considered 'fluids'
What is liquid and gas?
Volcanoes along a coastline are evidence of this type of plate boundary
What is an oceanic-continental convergent boundary?
The 2 types of convergent boundaries that create a trench
oceanic - oceanic
oceanic - continental
After a subducted plate melts it rises up to form a volcano because it became
less dense