4.1 science Inside Earth Flashcards

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1
Q

a substance mad up of atoms of two or more different elements joined by chemical bonds.

A

compound

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2
Q

the hypothesis that states that the continents once formed a single landmass.

A

continental drift

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3
Q

the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies.

A

sea floor spreading

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4
Q

a underwater mountain system formed by plates tectonics.

A

mid-ocean-ridges

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5
Q

a hypothetical supercontinent that included all current land masses.

A

Pangaea

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6
Q

a magnetic field of the earth that have occurred from time to time.

A

magnetic reversal

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