Earth's layers
Plate tectonics
Boundaries
1
How many layers are they in the earth?
4
1
How deep are the tectonic plates?
between 80 and 120 miles below the surface
1
What are the three main types of plate boundaries?
Convergent boundaries,Divergent boundaries,Transform boundaries.
567
When there is a volcanic eruption, what layer does magma come from?
the mantle
567
how old are plate tectonics
about 3 billion years
567
What are Divergent boundaries?
where two plates are moving apart
601
What layer is the thickest?
the core
601
How big is the smallest tectonic plate
250,000 square kilometers
601
What are Convergent boundaries?
where two plates are colliding
899
What are the names of the 4 layers?
inner core,outer core,mantle,crust
899
Where are the largest tectonic plates located
Pacific Ocean
899
What are Transform boundaries?
where plates slide passed each other
912
What layer is completely liquid?
outer core
912
What plate is Tokyo on?Eurasian plate
912
Which boundary creates mountains when it moves?
Convergent boundaries