PLATE TECTONICS Crossword

The person who came up with the theory of the continental drift
10 million years ago what started to break apart
The woman who made a surprising discovery while making maps
a device used by scientist in the mid 1900's that uses sound waves to measure the distance to an object
where sea floor spreading begins
usually a mirror image of the pattern on the other side of the ridge
rocks found closer to the center of the ridges
rocks found farther away from the ridges
often working together with subduction
what may happen if an ocean is surrounded by few treches
what may happen if an ocean is surrounded by many trenches
when plates move apart
explains the formation,movement,and subduction of the earth's plates
200 million years ago is how often the oceans floor is
why do earths plates move
a tool scientist use to measure plate motion precisely
this occurs when plates move
350 million years ago pangea was
8,900 Kilos is how far the the ______ Mountains run across the west coast of South America
the book Alfred Wegner wrote on the continental drift
10 million years ago is when the Pangea began to