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Module 6 Test

Test for Module 6

QuestionAnswer
Sedimentary Rock Rock formed when chemical reactions cement sediments together, hardening them
Plastic Rock Rock that behaves like something between a liquid and solid
Fault Boundary between two sections of rock that can move relative to one another
Epicenter Point on the surface of earth directly above an earthquake's focus
Pangea hypothetical super continent that may have existed in earth's past
What are the parts of earth? Atmosphere, hydrosphere, crust, mantle, core (inner and outer)
What is the Moho between? Crust and mantle
What is between the Gutenberg discontinuity? mantle and outer core
How do scientists observe the interior of the earth? Seismic waves
What is the benefit of earth's magnetic field? It protects us from cosmic rays from the sun
What causes earth's magnetic fields? Large amount of electrical flow to core
What are 2 theories that explain magnetic field? Dynamo theory and Rapid decay theory
How come the inner core is solid and the outer core isn't? The inner core has all the pressure of the earth on it which condenses it to a solid.
What causes deep trenches in the ocean? plates shifting
Created by: csyd