Show:
Earth's Layers
Earth's Plates
Earthquakes
Volcanoes
Miscellaneous
100
Number of layers Earth has
What are four?
100
Theory scientists use to explain plate movements
What is plate tectonics?
100
A sudden jolt that releases energy as vibrations.
What is an earthquake?
100
Forms when molten rock erupts or flows as lava from an opening in Earth's surface and builds up
What is a volcano?
100
Boundary when two plates move away from each other
What is a divergent boundary?
200
Thinnest layer of Earth's crust, also the top layer
What is the crust?
200
Largest plate covering one-fifth of Earth's surface
What is the Pacific plate?
200
Known as the point in Earth's crust where the first major movement along the fault occurred
What is the focus?
200
Name given to chain of volcanoes surrounding Pacific Ocean, Andes Mts. included
What is the Ring of Fire?
200
Deeper layer of the mantle
What is the asthenosphere?
300
Within 200 miles, the distance from the surface to the center of Earth
What is 4,000 miles?
300
Movement that happens at a transform fault boundary
What is grind past each other without forming new crust or melting old crust?
300
Measures the amount of energy released during an earthquake
What is the Richter scale?
300
Broad, slightly dome-shaped volcano that may erupt many times over a long period of time
What is a shield volcano?
300
Seismic wave that travels the slowest, also does the most damage to buildings
What is a surface wave?
400
Layer that contains the astenosphere and lithosphere
What is the mantle?
400
Layer of Earth where plates are found
What is the lithosphere?
400
Seismic wave that travels the fastest
What is a P wave/primary wave?
400
Switches between quiet and violent eruptions
What is a composite volcano?
400
Two types of plate boundaries where most volcanoes occur
What is divergent and convergent boundaries?
500
Solid of mainly iron and nickel, also the deepest of Earth's layers
What is the inner core?
500
Boundary that causes deep ocean trenches to form
What is a convergent boundary?
500
Location where 95% of all earthquakes occur at or near the edges of moving plates
What is a fault?
500
Single column of magma
What is a hot spot?
500
Known as the super continent when 225 million years ago all of the continents came together as one land mass
What is Pangea?