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March 15 Earth layers

Across
layer of solid, hot rock 40 kilometers beneath the surface; between Earth's crust and core
Physical Layer; solid part of the core
heavier and thinner crust - portion of the crust that is made of darker, denser basaltic crust formed at mid-ocean
lighter and thicker crust; portion of the crust that made is made lighter granitic crust
it’s layers vary greatly in size, composition, temperature and pressure
1 of 2 main types of evidence of how to learn about Earth’s interior; from rock samples - rocks drilled from deep inside Earth allow geologists to make inferences about conditions
Down
central part of the Earth that is made mostly of the metals iron and nickel; consists of 2 parts: outer and inner core; central part of the earth below the mantle
Physical Layer; Solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle; uppermost part of the mantle about 100 km thick - MANTLE
Physical layer; Strong, lower part of the mantle between the asthenosphere and the outer core; solid material extending all the way to the Earth’s core - MANTLE
2nd of 2 main types of evidence of how to learn about Earth’s interior; from SEISMIC waves - seismic waves produced by earthquakes allow scientists to measure the speed in which they travel, giving clues to the structure of the planet
THIN layer of SOLID rock that forms the Earth’s outer “Skin” (ABOVE THE MANTLE) and includes: the oceanic and continental crusts, the mantle (Litho, Astheno, Meso), core (inner and outer);
Physical Layer - Solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows very slowly, which allows tectonic plates to move on top of it; Softer part of the mantle; where the tectonic plates move- MANTLE
Physical Layer; layer of molten (liquid) metal that surrounds inner core