Plate Boundaries and Hot Spots

What are the puzzle pieces of the Earth's surface called?

• Tectonic plates
• Puzzles
• Earthquakes

The movement of the tectonic plates is caused by

• the rotation of the Earth.

• convection currents in the Asthenosphere

• the gravity of the iron-nickel core.

• the Moho discontinuity.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

• the oceanic crust is melting.

• the denser ceanic crust is subducting under the less dense oceanic crust

• volcanic islands are forming.

• the tectonic plates are moving away from each other.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Most geologists think that the movement of Earth’s plates is caused by _______

• convection.

• continental drift.

• subduction.

• conduction.

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NGSS.MS-ESS2-3

A place where two plates slip past each other, moving in opposite directions, is known as a _______

• transform boundary

• divergent boundary.

• convergent boundary.

• rift valley.

The place where two plates come together is known as a _______

• transform boundary.

• divergent boundary.

• convergent boundary.

• rift valley.

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NGSS.MS-ESS2-3

Below is a picture of sea-floor spreading. How are the ocean crusts moving?

• Converging

• Diverging

• Sliding

• No movement

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NGSS.MS-ESS2-2

The San Andreas Fault in California is known as an active earthquake area. What type of

boundary is it?

• Converging

• Diverging

• Transform

• Sea Floor Spreading

What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

Wegener’s proposal of a supercontinent was supported by:

• earthquake data
• seafloor magnetism
• rock, fossil, and climate data.
• convection currents in the mantle.

Tags

NGSS.MS-ESS2-3