Earth's Layers | Chemical & Mechanical Layers

Let's discuss Earth’s layers as they are categorized both chemically (their chemical composition) and mechanically (how they behave; what's solid, liquid, and in between).

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IN THIS EPISODE:
-How Do We Know? (Seismic Waves & Earth Formation | Density)
-Chemical Layers (Crust, Mantle, Core)
-Mechanical Layers (Lithosphere, Asthenosphere, Mesosphere, Outer Core, Inner Core)

NEED RESOURCES TO HELP YOU TEACH THIS TOPIC?
FREE Guided Notes Download:
https://www.teacherspayteachers.com/Product/FREE-Earths-Layers-Guided-Notes-Pairs-with-YT-Video-Print-Digital-Version-12870793

Earth's Layers Paper Model:
https://www.teacherspayteachers.com/Product/ACTIVITY-Earths-Layers-Paper-Model-Reading-Resource-Full-Color-and-BW-12870838

Earth's Layers Diagrams
https://www.teacherspayteachers.com/Product/Earths-Layers-Diagram-Chemical-Mechanical-Versions-Label-Color-12887527

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SCIENCE STANDARDS:
NGSS
HS-ESS2-3
Develop a model based on evidence of Earth’s interior to describe the cycling of matter by thermal convection. Emphasis is on both a one-dimensional model of Earth, with radial layers determined by density, and a three-dimensional model, which is controlled by mantle convection and the resulting plate tectonics. Examples of evidence include maps of Earth’s three-dimensional structure obtained from seismic waves, records of the rate of change of Earth’s magnetic field (as constraints on convection in the outer core), and identification of the composition of Earth’s layers from high-pressure laboratory experiments.

TEKS
SCI.6.10.A
Earth and space. The student understands the structure of Earth, the rock cycle, and plate tectonics. The student is expected to: build a model to illustrate the compositional and mechanical layers of Earth, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere;
SCI.8.9.A
Earth and space. The student knows that natural events can impact Earth systems. The student is expected to: describe the historical development of evidence that supports plate tectonic theory;

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