Convection Currents Flashcards

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1
Q

Why does a convection current form?

A

Because a heated fluid expands becoming less dense

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2
Q

What are tecnonic plates made up of?

A

Pieces of crust and very top layer of upper mantle

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3
Q

What is less dense, earths crust or upper mantle?

A

Earths crust

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4
Q

What does the heat from the core do?

A

Warms up the lower mantle

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5
Q

How are convesction currents created?

A

Heat rising and falling inside the mantle

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