Plate tectonics
When tectonic plates move toward each other, what type of boundary is it?
Convergent boundary
Where do most earthquakes occur?
Fault lines or boundaries
Liquid rock which makes it way from the center of the planet throught the mantle is called what?
Magma
The breaking down of a substance by natural causes is called what?
Weathering
What type of weathering changes the composition of material?
Chemical weathering
What two plates move away from each other; what type of boundary is it?
Divergent boundary
When an earthquake occurs in the ocean, it can cause which natural disaster?
Tsunami
Once magma reaches the surface of the planet, what is it called?
Lava
The movement of weathered material from one place to another is called what?
Erosion
What force is responsible for convergent boundaries?
Compression
When two plates move past each other on a horizontal axis what type of boundary is it?
Transform boundary
When soil and rocks move from a higher altitude on the side of a mountain to a lower altitude it is called what?
A landslide
Most volcanoes occur at what spot on the planet?
Fault lines or boundaries
Weathered material, which has been eroded and moved to a new area where it is then placed, what is it called?
Deposition
This type of volcano tends to be cone-shaped and have steep, sloping sides.
Composite volcano
The theory of plate tectonics replaced which theory of how the Earth's surface has changed?
The Theory of Continental Drift
When soil and sediments are shaken to a point they act more like a liquid during an earthquake this is called what?
Liquifaction
When an volcano erupts at a location other than a fault line or a boundary, this area is called what?
A hot spot
What are the three naturally occurring causes of the weathering?
Wind
Rain
Ice
This is the force responsible for transform boundaries?
Shear force
When one plate moves underneath another plate at a convergent boundary, this area is called what?
Subduction zone
What is the name of the machine used to measure the strength of an earthquake?
A Richter scale
What year did Mount Saint Helens erupt?
1980
What type of weathering does not change the physical make-up of weathered material?
Physical weathering
What is the last day of school now with all of the snow days?
June 3