Earth's Layers
the hard rocky outer layer of Earth
What is the crust?
the supercontinent that existed on Earth over 200 million years ago
What was Pangea?
a word that means "moving"
What is tectonic?
the number of layers inside the mantle
What is three?
the layer of Earth that is partly solid and partly liquid
What is the mantle?
the scientist that was first to find evidence for the theory of Continental Drift
Who was Alfred Wegener?
What is the lithosphere?
the layer of the mantle that has convection currents
the only fully liquid layer inside Earth
What is the outer core?
What PANGEA means in Greek
all earth
or
all land
What is the crust and upper mantle?
the thickest layer of the mantle
the solid ball of iron in the center of the Earth
What is the inner core?
the reason other scientists didn't take Wegener's theory of Continental Drift seriously
Alfred couldn't explain *how* the continents move
the distance that plates can move over a year
What is 2 centimeters?
makes molten rock rise in the asthenosphere
What is heat from the mesosphere?
What is continental crust?
Two pieces of evidence for continental drift
the shape of the coastlines and location of identical fossils on different continents
a break or crack in the lithosphere
What is a fault?
causes the movement of tectonic plates
What are convection currents?