Seafloor Spreading Crossword

Technology used to map the topography of the oceanfloor
An underwater mountain chain where new crust is formed.
When magnets point to magnetic north.
Magnets point to the south during ________ polarity.
Rock closest to the midocean ridge is ______ than rock further away.
At the midocean ridge new crust is being created in a process called ____.
Oceanic crust _________ beneath continental crust.
Oceanic crust is _________ than continental crust.
Seafloor spreading is responsible for _________________.
Earth's magnetic history has been recorded in _________ stripes on the ocean floor.
Molten material underground.
A feature of the seafloor that forms when oceanic crust dives under continental crust.
During subduction oceanic crust is pushed down toward the mantle and _____.
Molten material that erupts onto the surface.
Oddly shaped rock formations indicate new rock is forming at the midocean ridge.