The Earth's Interior
The uppermost layer of the upper mantle.
What is the lithosphere?
Convection currents helps these move millimeters each year.
What are tectonic plates?
He discovered continental drift in the early 1900s.
Who is Alfred Wegener?
The process that powers plate tectonics.
What is convection?
The pressure of a car tire if the force is 33lbs. on an area that is 11in.2
What is 3psi?
The Earth's layer made up of solid nickel and iron.
What is the inner core?
The transfer of heat by direct contact. Touching a pan handle that was sitting on a warm stove.
What is conduction?
The large landmass that existed before the continents drifted to where they are today.
What is Pangaea?
The result of force on a given area.
What is pressure?
The oceanic crust is made up mostly of this type of rock.
What is basalt?
Liquid iron tornadoes occur in this level of the Earth's interior.
The transfer of heat through space. Feeling the heat of a campfire for example.
What is radiation?
The two continents whose mountain ranges line up supporting Wegener's continental drift.
What is South America and Africa?
The second layer of the mantle consisting of soft, slow flowing rock.
What is the asthenosphere?
The continental crust is made up of this type of rock.
What is granite?
The thinnest layer of the Earth.
What is the crust?
The transfer of heat by the movement of fluids. Boiling water and lava lamps for example.
What is convection?
The coal fields of these two continents line up supporting continental drift.
What is North American and Europe?
Alfred Wegener's proposal that continents constantly move slowly due to convection currents of liquid rock.
What is continental drift.
The thickness of the mantle.
What is 1800 miles?
This force causing the inner core to remain a solid.
What is pressure?
The differences in movement between the outer and inner core cause this.
What is the Earth's magnetic field?
Land features, climate, and this all support continental drift.
What are fossils?
The movement of energy from a warmer object to a colder object.
What is heat transfer?
Two ways geologists study the Earth's interior.
What are rock samples and seismic waves?