Convection Flashcards
the movement of thermal energy
Convection
the movement of thermal energy.
thermal energy
similar to heat.
gravity
pulls everything towards the center of the earth.
Convection currents
hot liquid gas rises and cool liquid/gas sinks making currents.
Mid-Ocean ridges
large underwater volcanic mountain ranges that form in DIVERGENT boundaries.
Subduction
the process of one plate being pulled under another plate at a CONVERGENT boundary.
Continental Drift
Alfred Wegener’s idea that the continents were once joined together called Pangea.
Plate Tectonics
the theory that the lithospheric plates are constantly moving.
Geological Time
time periods of thousands,millions and billions of years.
Alfred Wegner
a German scientist that gathered evidence to support his idea on how Earth looked in the past.
Lithosphere
the upper mantle and the crust.
Lithospheric plates
the pieces the lithosphere is broken into.
Plate boundaries
place where 2 or more plates meet.
Asthenosphere
Solid rock that can flow.
Ring of fire
the line of earthquakes and volcanoes around the Pacific Ocean.