Continental Drift + Seafloor Spreading Review

Which was NOT a type of evidence that Wegener used to support his theory?

What did Wegener name the landmass that was made up of all continents joined together?

Fill In: Alfred Wegener noticed that certain ______ fields in Europe and North America match up

Older rock moves  ________ from either side of a mid-ocean ridge

Where does sea-floor spreading occur?

What is the name of the underwater mountain ranges that scientists like Marie Tharp discovered?

An ocean with very few trenches will probably _______________

Alfred Wegener's theory that the continents slowly moved over Earth's surface is known as what?

"Pillow Lava" or rocks shaped like pillows form only when molten material hardens __________

What is any trace of an ancient organism that has been preserved in rock?

Mid-Ocean Ridges continually add new material to the ocean floor in a process called what?

What country was Alfred Wegener from?

As a continent moves towards the poles, it's climate _____________

An ocean surrounded by many trenches may ____________

As the older oceanic crust cools, it becomes what?

True or False: The mid-ocean ridges form the longest mountain ranges on Earth.

Eventually the ocean floor plunges into deep underwater canyons we call ____________

Which of the following is NOT evidence of sea floor spreading?

The pattern of magnetic stripes in rocks on either side of ridge is ______________

Wegener's theory was rejected because he could not identify what?

In the mid-1900's, scientists mapped mid-ocean ridges using what device?

A deep-ocean trench is an underwater ____________

Where does subduction occur?

Which process changes the size and shape of the ocean?

The process by which the ocean floor sinks beneath a deep ocean trench is called ___________