Plate Boundaries
what is the plate boundary that has plates move horizontally away from each other.
Transform
Crust
Alfred Wegner proposed what theory?
continental drift/ tectonic plate theory
what is lava called underground?
magma
The crust moves?
true
What are the three tectonic plate boundaries?
Transform, divergent, convergent
List all four layers of the earth?
crust, mantle, outer and inner core
List one piece of evidence that Alfred Wegner used for his theory of plate tectonics?
1. Fossil record
2. Coastlines fit
3. Rock layers match
What are the three stages a volcano can be in?
active, extinct and dormant
Pangea was originally named Wegner's land
False!
The Boundary that produces only earthquakes?
Transform boundaries
list the two layers that are liquid/ partially liquid?
Mantle and outercore
What did Alfred Wegner call the supercontinent?
Pangea
What are the three types of volcanos?
Sheild, Composite and Cinder cone
Alfred Wegner is the only scientist who investigated continental drift?
False, Antonio Snider-Pellegrini and others had noted earlier that the shapes of continents on opposite sides of the Atlantic Ocean could fit together.
At Convergent plate boundaries what occurs?
Earthquakes, volcanos, subduction, mountains
Pressure from outer layers on top of the inner core.
What are the three driving forces of plate tectonics?
Convection currents (also ridge push and slab pull).
Nicolas was looking for the tectonic plates on a map. He found that there are two boundaries that create volcanos. Which are they?
Convergent and divergent
Alfred Wegner died from frost bite in Greenland?
True
Divergent boundaries produce what hazard?
Volcanos are produced and from this erruption lava sets and forms new crust.
Identify the temperature of the inner core?
5,430 °C
Alfred Wegner Observed a pattern in the rock on each side of a fault line in the sea floor. This pattern suggested that the continents were once all together. what is this piece of evidence called?
Magnetic fields
What is cinder from a volcano?
Cinder is charred solid molten rock.
Inner core is the same temperature as the sun?
true or flase
True