Convection Currents
Magma heats up when it is closest to the....
core.
This is the layer of the Earth we live on.
Crust.
__________ ___________ are part of the lithosphere and float on top of the asthenosphere.
Tectonic plates.
Name one effect caused by the movement of tectonic plates.
Tsunami, earthquake, volcano, creation of mountains, creation of rifts.
Magma cools down when it is close to the...
crust.
What is the hottest part of the earth?
The inner core.
What is the coolest part of the Earth?
The crust.
Scientists map seismic waves to determine the atomic structure of materials that lie beneath Earth's surface. True or false?
True.
What drives the movement of tectonic plates?
Convection currents.
This is where convection currents occur.
The mantle (or asthenosphere, which is part of the Mantle).
What kind of boundary have plates that collide?
Convergent boundaries.
Tectonic plates move because....
Convection currents in the mantle.
It is a type of convergent boundary and it occurs when the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Subduction.
This layer of the Earth is sticky like tar?
The asthenosphere.
What are the two types of crust?
Continental and oceanic crust
What theory specifies how fast the plates may have moved in the past?
Plate tectonic theory.
_____________ _________cause tectonic plates to move.
Convection currents
What are the two parts of the mantle?
The asthenosphere and the lithosphere.
What are the 3 types of plate boundaries?
Divergent, Convergent and Transform Fault
Scientists use seismic wave data to study the Earth's structure. True or false?
True