Show:
Earth's layers
Earthquakes
Plate Boundaries and Mountains
Earth's Structure
Volcanoes
100
Earth's outermost layer is called what
The Crust
100
A crack in the crust along which rocks move is called a
fault
100
What type of boundary is it when two plates move toward each other.
Converging Boundary
100
What do geysers and Volcanoes tell scientist about our earth's interior?
That the Earth's interior is extremely hot.
100
What word is given to melted rock below Earth's surface
Magma
200
The layer of Earth between the crust and the outer core is called...
The mantle
200
What does the Richter scale measure?
The magnitude of an Earthquake.
200
What type of boundary is it when two plates move away from each other?
Diverging Boundary
200
What happens to the temperature of Earth's interior as you drill farther into it.
It increases in temperature
200
What forces the magma to rise to the surface.
The pressure of the gases
300
Earth's innermost layer is called...
Core
300
Shock waves of energy are know as
Seismic waves
300
This type of mountain is formed when magma pushes up on Earth's crust, but does not break through.
Dome Mountain
300
how do fossils provide evidence for moving plates.
fossils of similar species have been discovered on opposite sides of an ocean along the edges of different Continents.
300
What is magma called after it leaves the volcano
Lava
400
The _________ is composed of the solid upper mantle and the crust
The lithosphere
400
The point on the surface directly above the focus.
The epicenter
400
This type of mountain is formed along fault lines where blocks of rock fall, are thrust up, or slide.
Fault-block mountain
400
What theory did Alfred Wagner try to prove
Continental drift
400
As it cools, lava hardens into formations such as...
boulders, domes, cones, tubes, and smooth or jagged sheets.
500
The thinnest layer of Earth's structure is the..
Crust
500
Why do surface waves cause the most damage?
They make the ground swell and roll.
500
This type of mountain is formed where tow plates collide and force layers of rock into folds.
Fold mountains
500
The idea of giant plates of rock are moving slowly across Earth's surface
Plate techtonics
500
What type of Volcano is Mount St. Helens
Stratovolcano