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March 15, Earth Layers

Across
between Earth's crust and core; layer of solid, hot rock 40 kilometers beneath the surface;
Physical Layer; solid part of the core
denser basaltic crust formed at mid-ocean; heavier and thinner crust - portion of the crust that is made of darker,
portion of the crust that made is made lighter granitic crust; lighter and thicker 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 below the mantle; central part of the Earth that is made mostly of the metals iron and nickel; consists of 2 parts: outer and inner core;
uppermost part of the mantle about 100 km thick; Physical Layer; Solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle; - MANTLE
Physical layer; solid material extending all the way to the Earth’s core - ; Strong, lower part of the mantle between the asthenosphere and the outer 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 - Softer part of the mantle; where the tectonic plates move; 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; - MANTLE
Physical Layer; layer of molten (liquid) metal that surrounds inner core