Structure of The Earth Unit Vocabulary Flashcards
The functional layer is located below the lithosphere and in the the mantle. greek for weak. upper mantle and relatively thin. 50-100 miles thick. highly viscous almost solid. pliable solid. flows reluctantly and molds around.
Asthenosphere
The functional layer of gases surrounding Earth. Mostly nitrogen and some oxygen.
atmosphere
all living organisms. is wherever there is liquid water. atmosphere and hydrosphere
biosphere
p-waves and s-waves. penentrate the surface or crust. propagation speeds change as waves continue to travel.
body waves
the crust, mantle, outer core, and inner core
compositional layers
the thinnest and outer layer located on land.
continental crust
The circulation and process of cool/dense material sinking and hot/ less dense material rising. This repeats because as it sinks it heats up and as it floats it cools down.
convection cells
the theory that outer core and its lvz/ movement causes Earth’s magnetic field.
dynamo theory
calculated density of earth using its size. applies this to discovering more about the layers and Earth.
gravitational constant
all water on Earth: in any state of matter, on and in the crust, mostly in the ocean
hydrosphere
the furthest layer of earth from the surface. Most pressure and the hottest. single iron crystal. solid/ plasma. 10k degrees farenheit 70% size of the moon.
inner core
functional layer located on crust and upper mantle. greek for rock. rigid. tectonic plates.
lithosphere
the layers and their roles/groups. lithosphere, asthenosphere, mesosphere, outer core, & inner core.
mechanical layers
the thinnest and outermost layer located in the ocean.
oceanic crust
only liquid layer, convection cells.
outer core
