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WorksheetsStudy Guide on Continental Drift and Magnetosphere
Total questions: 14
Worksheet time: 7mins
Which of the following Earth layers has the greatest density?
Crust
Mantle
Inner Core
Outer Core
Where is the Earth's magnetic field thought to be generated?
Crust
Mantle
Core
The crust, the mantle, and the core are structures of Earth. Which description is a feature of Earth's mantle?
Contains fossil remains
Contains the tectonic plates
Is the only fully liquid layer of the Earth
Contains most of Earth's mass
Without Earth's magnetic field,__________________________.
Compasses would not work
Life would be exposed to ultraviolet radiation
Solar wind would strip away the atmosphere
All of the above
Look at the picture above. Which numbered part represents the mantle?
1
2
3
4
Earth's core is made of...
Rock
Iron and nickel
Iron and steel
Steel and nickel
Which method is best for studying the composition of Earth's core?
Taking samples from an underwater cave.
Drilling holes to the core for samples.
Studying index fossils found on the sea floor.
Studying earthquake waves.
Scientists know that the reason the magnetic field flips is that...
Convection becomes chaotic and reverse direction.
An asteroid impact disrupts motions in the core.
Excess volcanism causes chaos in the mantle.
None of these; scientists do now know why this happens.
Electromagnets can be created by wrapping a wire around iron (usually a nail) and running _____ through the wire.
Heat
Water
Energy
None of the above
The mantle is the thinnest layer of the Earth.
True
False
The only fully liquid layer of the Earth is...
Crust
Mantle
Outer core
Inner core
What is our best evidence that Earth has a magnetic field?
All things fall toward Earth’s center.
A compass needle lines up with it.
Ocean currents.
Images from space.
True North and Magnetic North are really the same thing and can be used inter changeably.
True
False
Some animals use the Earth's magnetic field to find the right direction when migrating.
True
False
