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6th unit 4 review

Unit 4 test review for 6th grade

QuestionAnswer
believed to made of liquid metal Earth's outer core
the stress that takes place when two plates slide past each other, twisting the Earth shearing
heated rock inside the mantle magma
locates underwater objects using sound waves sonar equipment
the stress that takes place when two plates move away from away from each other, tearing rocks apart tension
a crack in the Earth's crust resulting from pressure built up over time fault
the part of the Earth that lies between the crust and the core mantle
moving toward each other convergent
an instrument that measures the waves of an earthquake siesmograph
moving away from each other divergent
Many scientists believe there was once a giant continent called Pangea
The rocks at the top of the ________ are said to be in a solid state. mantle
One plate slides beneath another in a process called subduction
The theory that states the continents are slowly but continuosly moving is called continental drift
The __________ is said to be in a solid state due to extreme pressure. inner core
When two _________ are pushed toward each other, compression takes place. plates
The ___________ is directly above ground from the focus of the earthquake. epicenter
The most common type of volcano is the ____________ volcano. composite
Magma that reaches Earth's surface is called lava
Volcanoes that have not erupted in recent history but could still erupt are called ____________ volcanoes. dormant
A volcano that has not erupted in hundreds of years and is not likely to erupt is said to be extinct.
Challenger Deep is the deepest part of the ________________. Mariana Trench
The measurement of the depths of the ocean is called ___________. bathymetry.
The __________- mountains were formed by folding. Himalayan
What are the most powerful waves that travel along the top of the grounds? L-waves
Waves at the beginning of an earthquake are called ____________. P waves
. ____ takes place when rocks bend because of pressure. Folding
Longest undersea mountain chain: Mid-Atlanitic Ridge
A ______ studies volcanoes. volcanologist
The mantle is ______. the part of the earth that lies between the crust and the core
A definition of dormant is _____. has not erupted for a long time, but may erupt in the near future
Created by: Hillerywest