Boundaries
What type of boundary is it when plates move toward each other?
convergent boundary
The lithosphere is a permanent structure of the Earth that doesn't move. True or false?
false
The layer we live on.
crust
Where can one divergent boundary be found? (HINT: in the ocean)
mid-Atlantic ridge
Which decade was Alfred Wegener's theory of continental drift proven?
1950's
What type of boundary is it when new crust forms? (hint: this normally occurs in the ocean)
divergent boundary
When an oceanic plate and continental plate collide, one slides under the other. What is this called?
subduction
The layer that is the thickest and makes up 67% of the Earth's mass.
mantle
Where can slide/transform boundaries be found? (HINT: in the USA)
San Andreas Fault, California
Earth's upper crust and upper mantle broken into sections that are in constant, slow motion driven by movement in the mantle is called ______________.
plate tectonics
What are the three types of boundaries?
Convergent, Divergent, Transform/Slide Boundaries
The layer of Earth we live on.
crust
The layer that is all liquid magma.
outer core
When convergent oceanic and continental plates meet, what typically happens?
the oceanic plates subducts, or dips below the continental plate
What is Continental Drift Theory?
That continents have moved slowly to their current locations. Presence of fossils, rocks, and mountains on different continents help support this idea.
What type of boundary is it when two plates slide past each other?
transform or slide boundary
What causes plates to move?
convection currents
The layer that is in the center of the Earth and is as hot as the surface of the sun.
inner core
What mountain range is formed by convergent boundaries? (HINT: in southern Asia)
Himalayan Mountain Range (Himalayas)
What man was NOT trusted with his idea of movement of plate tectonics?
Alfred Wegener
When convergent boundaries occur, it can cause land to raise up and this is called _________.
uplift
What are plate tectonics?
broken parts of lithosphere that move continents
Layer where most magma is.
mantle
Plate boundary movements underwater can cause tsunamis. True or false?
true
What is seafloor spreading?
New ocean floor is created as molten material from the earth's mantle rises in openings between plates and spreads out.