kk Flashcards
Lithosphere
he crust and uppermost part of the mantle,
Asthenosphere
semi-plastic rock.
Mesosphere
mesosphere is very important for earth’s protection.
Inner Core
he fourth layer inside the Earth
Outer Core
mostly composed of liquid iron and nickel.
Seismic Waves
waves that travel through or over Earth
Oceanic Crust
the outermost layer of Earth’s lithosphere that is found under the oceans
Continental Crust
the core, mantle and crust.
Density
the number of things
Alfred Wegener
the theory of continental drift
Continental Drift
evolutionary theory explaining that continents shift position on Earth’s surface
Convergent Boundary
When two plates come together,
Divergent Boundary
when two tectonic plates move away from each other
Transform Boundary
places where plates slide sideways past each other
Sea-floor Spreading
a geologic process in which tectonic plates—large slabs of Earth’s lithosphere—split apart from each other.
