Plate Tectonics and

Magnetism

Plate Tectonics and

Magnetism

Hosted by Mrs LaBelleHosted by Mrs LaBelleHosted by Mrs LaBelleHosted by Mrs LaBelle

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Inside StoryInside Story May the force May the force be with yoube with you

Movin and Movin and GroovinGroovin Which WayWhich Way

Which of Earth’s layers is Which of Earth’s layers is composed of tectonic plates? composed of tectonic plates?

____________________________________________

The lithosphere

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The lithosphere is a stiff The lithosphere is a stiff outer layer of the Earth. outer layer of the Earth. Convection in the _______ Convection in the _______ helps move pieces of the helps move pieces of the lithosphere aroundlithosphere around

mantlemantle

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The lithosphere includes The lithosphere includes the upper part of the mantle the upper part of the mantle

and the _______________.and the _______________.

crustcrust

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The spread of the ocean The spread of the ocean floor which pushes floor which pushes lithospheric plates around lithospheric plates around is a theory called is a theory called ______________________.______________________.

Plate TectonicsPlate TectonicsInside Story for $400

The crust is The crust is part of which ofpart of which ofEarth’s layers?Earth’s layers?

LithosphereLithosphere

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Earth is a giantEarth is a giant __________.__________.

MagnetMagnet

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True of falseTrue of falseJust like other magnets,

the earth has two magnetic poles with opposite charges ..

truetrue

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The needle of a compass The needle of a compass generally points in which generally points in which direction? direction?

Geographic northGeographic north

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What does What does earth’s magneticearth’s magnetic  fieldfield have in common with  have in common with a bar magnet?a bar magnet?

They both have aThey both have a        North Pole and South PoleNorth Pole and South Pole  

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TheThe lights of the Aurora lights of the Aurora Borealis result fromBorealis result from ……

Particles from the Sun hitting Earth’s Magnetic field

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_______________ causes _______________ causes geologic events such as geologic events such as earthquakes, volcanic earthquakes, volcanic eruptions, and the creation eruptions, and the creation of mountains.of mountains.

lithospheric plate movement

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What is often formed when continental plates collide?

MountainsMountains

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Pressure builds up and is Pressure builds up and is suddenly released when thesuddenly released when the ______________________________________________ plates rub past each other.plates rub past each other.

lithospheric

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If scientists find the same types of If scientists find the same types of fossils on the eastern coast of fossils on the eastern coast of South American and the western South American and the western coast of Africa, what does this coast of Africa, what does this suggest?suggest?

At one time, the two continents were one landmass

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Convergent plates move Convergent plates move _____________ each other. _____________ each other. This causes _____________to This causes _____________to form as well as volcanoes.form as well as volcanoes.

towards - mountainstowards - mountains

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True or FalseTrue or FalseEarth’s magnetic field is strongest near the north and south magnetic poles ..

truetrue

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. . What causes a compass What causes a compass needle to point to needle to point to geographic north?geographic north?

It aligns itself with the It aligns itself with the Earth’s magnetic fieldEarth’s magnetic field

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A captain of a ship A captain of a ship is following this is following this Compass, which Compass, which way is he traveling way is he traveling

SoutheastSoutheast

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Just like the field of a bar magnet, the Earth’s magneticfield lines are _____________ near its magnetic poles.

closest closest togethertogether

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What type of device has a Magnetized needle that aligns with the earth’s magnetic field?

A compassA compassWhich Way for $500

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