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.
Lava
when magma flows over Earth’s surface.
Igneous rock
forms when magma lava cools and solidifies.
Earthquake
a sudden release of energy in Earth’s interior which can cause shaking at the surface.
Volcano
an opening in Earth’s surface in which lava,gas,and ash escape from magma underground.
Magma
hot liquid rock Under Earth’s surface.
Natural Hazard
a natural event that may negatively affect people and the environment.
Landslide
the flow of rock,soil,ect. down a slope
Model
any representation of a system used to understand how it works.
Sedimentary Rock
layers of hardened sediment.
