Layers
What are the layers of the Earth?
Crust, upper mantle, lower mantle, outer core, inner core
Where are convection currents located?
Mantle
What is Pangaea?
Theory that earth's continents were one super continent
What way do transform boundaries work?
They slide
What are the 3 types of plate boundaries?
Convergent, divergent, and transfrom
Which layers are the thickest?
Upper and lower mantle
How do convection currents work?
What theory explains how Pangaea moved?
Continental drift
What would you find at oceanic crust to oceanic crust divergent boundary?
rift valley
What the 2 types of crust?
Continental and Oceanic
Which layer is the thinnest?
crust
what do lave lamps and convection currents have in common?
They work the same
How long ago was pangaea?
250 to 300 million years ago
What happens at tranform boundaries?
Earthquakes
Volcanoes along convergent oceanic plate boundaries, form what?
Volcanic Island arcs
Order the layers of the Earth from highest temperature to the lowest
Inner core, outer core, lower mantle, upper mantle, crust
What moves the tectonic plates?
Convection currents
What are the three pieces of evidence that prove the theory of Pangaea?
rocks, fossils and ancient glaciers
Where do most geological events take place?
Fault lines
When two oceanic plates are divergent, what is it called?
Sea floor spreading
The inner core is a solid, why?
Pressure
What would happen to the convection currents if the interior was hotter?
speed up
What can we predict about the future of Africa?
torn apart
Why is it important to study the movement that occurs at plate boundaries?
Convergent and continental