Which plate boundaries create shiled volcanoes?
constructive plate boundaries
how to plates move at a conservative plate boundary?
side to side (parallel)
Describe oceanic crust- (density, thickness, where)
Dense and heavy, but also thin. Beneath the earths oceans
what direction to plates move at destructive plate boundary?
Towards each other
Describe what subduction is and at which plate boundary it occurs
Subduction is when one plate is pushed under another. It happens at destructive plate boundaries
What are the four layers of the earth?
Core, mantle, inner core, outer core
Describe a shield volcano (Shape and lava)
flatter like a shield, runny lava
Decribe a composite volcano (shape and lava)
cone shaped, thick lava
what is the name of the plate boundary where two plates move away from apart?
A constructive plate boundary
Which plate boundaries create concave volcanoes?
destructive plate boundaries
which layer of the earth does lava come from?
The mantle
what is the process in the matle that makes plates on the crust move?
Continental Drift