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Apologia Physical Science
Module 6
9
Science
8th Grade
03/07/2017

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Cards

Term
Sedimentary Rock
Definition
Rock formed when chemical reactions cement sediments together, hardening them
Term
Plastic Rock
Definition
Rock that behaves like something between a liquid and a solid
Term
Fault
Definition
The boundary between two sections of rock that can move relative to one another
Term
Epicenter
Definition
The point on the surface of the earth directly above an earthquake's focus
Term
5 Major Regions/Layers of Earth's Composition
Definition
Crust/Asthenosphere/Mantle/Outer Core/Inner Core
Term
Between what two layers of the earth can you find the Moho?
Definition
The Moho separates the crust from the mantle
Term
What have scientists observed in order to learn about the earths interior?
Definition
Scientists have observed seismic waves
Term
What causes the earth's magnetic field?
Definition
Electrical flow in the core causes the heart's magnetic field
Term
Which two theories attempt to explain the party's magnetic field? Which theory is the most scientifically valid?
Definition

Dynamo Theory and the Rapid-Decay Theory.

The Rapid-Decay Theory is more scientifically vaild.

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