Tectonic Hazards - 1.2.1 Tectonic Plates Flashcards

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1
Q

Tell me about the earth’s core?

A

inner core (solid)
outer core (liquid)
Hottest part of the earth

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2
Q

Tell me about the earth’s mantle?

A

Surrounds the core.
Made of semi-molten rock.

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3
Q

Tell me about the Earth’s crust.

A

Between 5-100km.
Floats on the mantle and is broken into large pieces.

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4
Q

What are continential plates?

A

Thicker, older and lighter plates that don’t sink (subduct).

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5
Q

What are oceanic plates?

A

Thinner, newer and denser plates so they can sink underneath other plates.

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6
Q

What are plate margins or plate boundaries?

A

They describe the location where two tectonic plates meet or sit next to each other.

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7
Q

What do we call the meeting point of 2 tectonic plates?

A

Plate margins.

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8
Q

Plate boundaries and plate ____ are the same thing. They describe the location on Earth where 2 ____ plates meet or sit next to each other.

A

margins
tectonic

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9
Q

What are the 2 types of tectonic plate?

A

Continential
Oceanic

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10
Q

The Earth’s crust is broken into large pieces called ____ plates.

A

tectonic

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