Layers of the Earth
thickest layer
mantle
puzzle pieces of the crust
tectonic plates
plates divide apart
divergent boundary
how many major tectonic plates are there?
14
steep and slick sides; forms quickly
cinder cone volcano
molten metal
outer core
creates new crust
seafloor spreading
plates slide past each other
transform boundary
point inside Earth where an earthquake begins
focus
will never erupt again in history because it no longer has a magma chamber
extinct
which two layers make up the lithosphere
crust and mantle
destroys old crust
subduction
plates collide with one another
convergent boundary
earthquake wave
seismic wave
very large base on this volcano
shield volcano
solid iron and nickel
inner core
one large land mass
pangaea
mountains are formed at this boundary
convergent
most destructive wave type
surface wave
which is on the outside of the volcano: lava or magma
lava
molten rock
mantle
name 2 of the pieces of evidence of continental drift.
puzzle pieces
fossils
glaciers
rocks
mountains
most earthquakes occur at this boundary
transform
point above the Earth where the most damage occurs
epicenter
a sleeping volcano
dormant