green

purple

light red

dark red

light yellow

9

11

10

8

largest and deepest ocean

smallest, shallowest, and coldest ocean

boundary where two continental plates push against each other & mountains can form

boundary where two ocean plates separate & where the mid-ocean ridge is forming ocean floor

boundary where two plates slide past each other & where earthquakes occur

which is denser?

which has basalt?

which has granite?

which plate subducts when the two collide?

which is older?

sonar is used to map the sea floor

carbon dating is used to determine the age of sediments

formed from the weathering of rock

formed from the skeletons and shells of marine life

the process of an oceanic plate going under a continental plate at a convergent boundary

which of these forms at the convergent boundary between a continental and oceanic plate?

who proposed the idea of pangea

why did no one believe the idea of Pangaea was possible at first

seafloor subducts back into the mantle at the mid-ocean ridge

seafloor is formed at the mid-ocean ridge and gets pushed outwards

age of seafloor decreases as distance from the ridge increases

seafloor spreading occurs at a divergent boundary

oceanic crust records the magnetic polarity of the Earth as it forms