A deep crack in the ocean floor.
What is a trench.
Plate boundaries move apart bringing magma (molten lava) from the mantel to the earths surface.
What is Divergent Plate Boundaries
The largest (thickest) layer of earth.
What is the mantle.
The movement of our continents
What is the theory of Plate Tectonics
A supercontinent of one giant land mass
What is Pangaea
Tectonic Plate Boundaries that come together creating mountains and sea floor trenches
What is Convergent Plate Boundaries
This layer is made up of liquid iron and nickel.
What is the outer core.
The person who came up with the Theory Continental Drift.
Who is Alfred Wegener.
Two Tectonic Plate Boundaries sliding past each other, creating earthquakes
What is Transform Plate Boundaries
The inner core is made of solid iron and nickel due to what two things?
The earths crust is also called
What are tectonic plates
Laurasia eventually split into these two landmasses
What is Eurasia and North America.
The separation of Tectonic Plates from the supercontinent/pangaea into puzzle pieces.
What is Continental drift?
This is a malleable (puddy-like) layer that the Plate Tectonics move on top of.
This process causes lower mantle material to become less dense and rise and then cool near the surface and drops back down.
What is Convection Currents.
Gondawandaland breaks up into these 5 continents.
What is Australia, South America, Africa, Antarctica, and Indian Sub Continent.
The earths crust and upper mantle is called...
What is the Lithosphere?
Thin outermost layer of the earth including the oceans floors.
What is the earths crust?