Plate Tectonics 1
The broken pieces of lithospere that are made to move around due to convection currents.
Tectonic Plates
The outermost layer of the Earth
Crust
New crust is created at this type of boundary.
divergent
This layer of the Earth is in the very center and is made of mostly iron.
The inner core
The layer of the Earth between the crust and the outer core (has two layers).
mantle
This layer of the Earth is made up of the asthenosphere and the lithosphere.
the mantle
The area where two tectonic plates meet
Plate Boundary
This often forms when a continental plate converges with a continental plate
Mountains
This type of boundary is made when two tectonic plates collide
Convergent
This type of plate boundary is the leading cause of earthquakes
The name for the pattern on a map made by graphing the location of most volcanoes on Earth.
The Ring of Fire
A boundary where two plates slide along each other
Transform
This type of boundary is made when two plates pull apart from each other
divergent boundary
The name for magma once it reaches the surface of the Earth
lava
The force from this causes the tectonic plates to move
convection currents
The innermost layer of the Earth's is called the
Inner core
The Earth's crust is broken up into ___ major tectonic plates.
7
Heat transfer by direct contact of particles of matter
conduction
Rift valleys occur at this type of plate boundry in the ocean and on land.
divergent
This volcano is part of the Cascade Mountain Range in the western United States. It had a major eruption in 1980.
Mt. St. Helens
He developed the theory of continental drift
Alfred Wegner
This technology is used to map the seafloor depth
The deepest part of the ocean, The Mariana Trench, is formed by this type of plate boundary
convergent
When two plates meet at a convergent boundary, which one will subduct?
Oceanic plate
This word describes the action of one plate moving below another plate into the mantle
subduction