Continental Drift
Plate Tectonics
Earthquakes
Earth's Layers
Volcanoes
100
What is the name of the German meteorologist that proposed the continental drift theory?
Alfred Wegener
100
Which type of boundary is pictured?
Convergent boundary
100
Earthquakes typically occur _____________________.
Along plate boundaries
100
Which layer of the earth is the hottest layer?
Inner core
100
What type of volcano is pictured?
Cinder cone volcano
200
What is the name of the "supercontinent" that was proposed in the continental drift theory?
Pangea
200
What type of boundary is pictured?/GettyImages-483766933-56c6e7fd3df78cfb37869a63.jpg)
Divergent boundary
200
Which earthquake measurement scale records seismic waves on a scale of 1-10?
The Richter scale
200
The crust and the uppermost mantle make up the _____________________.
Lithosphere
200
_____________ refers to the thickness or resistance to flow of lava.
Viscosity
300
What are the 3 types of evidence that Wegener used to form his continental drift hypothesis?
Fossils, glaciers, and rocks/mountain ranges
300
What boundary is pictured below?
Transform boundary
300
What type of wave is pictured below?
S wave
300
Which of the following is the thinnest layer of the earth?
The crust
300
What is the term that describes a stationary reservoir of magma that slowly releases magma and results in island formation?
Hot spots
400
True or false: During WWII, echo sounder technology discovered that the seafloor was full of canyons, valleys, and volcanoes.
True
400
Subduction occurs when a dense __________________________ plate and a less dense ______________________ plate collide.
Oceanic; continental
400
An earthquake is a result of the release of _________________ after the plates unstick.
Energy
400
What is the upper portion of the earth’s mantle where convection currents occur?
The asthenosphere
400
As silica concentration _____________________, viscosity of lava ________________.
Increases; increases
500
What is it called when mid-ocean ridges continually add new material to the ocean floor?
Seafloor spreading
500
What would you be most likely to find at a convergent boundary between a piece of continental crust and a piece of oceanic crust?
A volcano
500
What is the “magnitude” of an earthquake?
The size of an earthquake
500
What are the 2 types of crust?
Oceanic crust & continental crust
500
True or false: Magma is molten rock that has reached the earth's surface through a weak spot in the crust.
FALSE! It is lava!