This is made up of the crust and a tiny bit of the upper mantle
What is the lithosphere?
The place where two plates meet is called this
What is a boundary?
Band of active volcanoes that encircle the Pacific Ocean is known as this
What is the Ring of Fire?
This is usually found near subduction zones and is a steep sided depression in the ocean floor
What is a trench?
Transform boundaries and resulting faults produce many of these
What is earthquakes?
The plates of the lithosphere move (or float) on this hot, malleable semi liquid zone in the upper mantle
What is the asthenosphere?
Plates moving towards each other is called this
What is convergent?
This type of crust is thinner but denser than the other type of crust
What is oceanic crust?
This is a rupture in the crust and allows lava, ash, and gases to escape from a magma chamber
What is a volcano?
Fracture zone between two blocks of rock
What is a fault?
The layers of Earth's interior from the surface downward are
What is the crust, upper mantle, lower mantle, outer core, and inner core?
Two plates moving away from each other is called this
What is divergent?
This type of crust is thicker but less dense than the other type of crust
What is continental crust?
This is what scientists call a chain of volcanoes formed above a subducting plate
What is a Volcanic Arc?
An underwater mountain range that stretches from the top of the Atlantic Ocean to the Southern Ocean and looks like the seam on a baseball
What is the Mid Ocean Ridge?
The supercontinent that a German scientist in the 1920's named this
What is Pangaea?
Two plates sliding past each other is called this
What is transform?
This is an area where one plate is pulled under the edge of another plate to be recycled in the mantle
What is a subduction zone?
When two continental plates collide, it crunches and folds the rock at the boundary, and lifts it up to form
What are mountains or mountain ranges?
This is a current in a fluid
What is convection?
This same German scientist theorized Pangaea split apart and moved to their current locations and called his hypothesis this
What is Continental Drift?
Two plates moving in the same direction is called this
What is diffuse?
This is molten rocks, gases, solid crystals, and minerals inside Earth
What is magma?
At divergent boundaries, this action is where magma oozes up from the mantle to fill the space between the plates
What is seafloor spreading?
Name the seven major tectonic plates
What is the Pacific, North American, Eurasian, African, Antarctic, Indo-Australian, and South American?