Earth's Layers
What is the thinnest layer of Earth?
Crust
Rocks formed from cooled lava/magma.
Igneous rocks
Boundaries where plates move apart.
Divergent
Large solid pieces of Earth's crust (hint: there are 7)
Tectonic plates
What is the inner core primarily made of?
Name the four major layers of the Earth.
Crust, mantle, outer core, and inner core
Rock made from compacted particles of other rocks.
Sedimentary rocks
Boundary where plates slide past each other.
Transform
These are deep boundaries that form at convergent boundaries with subduction.
Trenches
These types of movements cause the mantle to move in a fluid motion.
Convection currents
Which layer is the hottest?
Inner core
Rocks that change due to high pressure and temperatures.
Metamorphic rocks
Boundary where old crust is destroyed.
These form at convergent boundaries where there is no subduction.
Mountains
What type of plate boundary is the San Andreas fault in California?
Transform
Outer core
Rocks commonly found near volcanoes.
Igneous rocks
Boundary where mountains are formed.
These tall features form at convergent boundaries with subduction.
Volcanoes
What type of plate boundary formed the Appalachian Mountains?
Convergent with no subduction
Mantle
Rocks mostly found near mountain ranges.
Metamorphic rocks
Boundary where new crust is formed.
Divergent
These underwater features from at divergent boundaries.
Oceanic mountains
What country has the same mountain range that is the same mountain range as the Appalachian Mountains?
Greenland