Plate boundaries
What are the three types of boundaries?
Convergent, Divergent, Transform Boundaries
Who was the scientist to propose the continental drift theory
Alfred Wegener
What type of boundary creates volcanoes?
Convergent
Near what type of boundaries do major earthquakes happen?
transform
Name 3 different natural disasters that are caused by plate tectonics
volcanoes, earthquakes, tsunamis
What type of boundary is it when crust collides?
convergent
What was the super continent named
Pangea
What do we call the. "mouth" of the volcano that lava spills from
Crater
This type of seismic wave is the first to arrive
P waves
What is occuring when stress builds up between 2 plates and that stress is released in a sudden plate slip.
An earthquake
What type of boundary is it when new crust forms?
Divergent
What is continental drift
that the continents covering the planet had moved around, were moving around, and would continue moving around
What is the name of the area that has a very high volcanic activity and lots of volcanoes
Ring of fire
The projection of the earthquake's focus on the surface is called what?
epicenter
What is the name of the process that creates new oceanic crust?
Sea floor spreading
What type of boundary is it when two plates slide past each other?
transform
Why was the theory of continental drift not accepted by other scientists when it was proposed?
Because the scientist that proposed it could not explain why it was happening
What are the 3 different types of volcanoes
cinder cone, strata cone or composite and shield
These type of seismic waves cause a vibration to the ground
S waves
What causes plates to move?
Convection currents
What are the three types of convergent boundaries?
continental-continental, oceanic-oceanic, and oceanic-continental
Name 3 evidence of continental drift
Same type of fossils found in different continents
The fit of the continents shorelines
Matching rocks and mountain ranges in different continents
Location of evidence of past glaciers
Location of evidence of coal deposits
Why do some mountains explode?
Because of water trapped with the magma
Why doesn't Georgia get earthquakes?
Where do plate tectonics float on
The asthenosphere