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Define sea-floor spreading

The process by which new oceanic lithosphere forms as magma, rises to Earth's surface, and solidifies as a mid-ocean ridge

Pieces of the Earth's crust that move around are called ______

tectonic plates

All of the Earth's continents were part of one giant continent called ______


Describe the movement along:
Convergent Boundaries _____________,
Transform Boundaries ______________,
Divergent Boundaries ______________

Convergent: plates moving towards each other -> <-
Transform: plates sliding past each other while moving in opposite directions
Divergent: plates moving away from each other to form mid-ocean ridges <-- -->

Where are the youngest rocks on the ocean found, closer to mid-ocean ridges or farther from mid-ocean ridges?


How are tectonic plates like the pieces of a jigsaw puzzle?

Because they're movable and when you put them all together they make one piece

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