Plate Tectonics and Continental Drift

In a tectonic plate demonstration during class, Mrs. Smith

pushes two pieces of modeling clay together. What kind of

plate boundary was the teacher demonstrating?

• Convergent

• Earthquake

• Equator

• Divergent

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What is the Theory of Continental Drift?

• New continents are continually being created

  and destroyed.

• The layout of the continents is the same today

  as it has always been

• The continents have always been separate but

  may one day drift together to form a single

  continent

• All the continents were once one continent that

  broke up and drifted apart over hundreds of

  millions of years

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Where does magma rise to the top to become new crust?

• one plate splits into two distinct plates

• one plate grinds against another plate

• two plates separate and move apart from one

  another.

• two plates meet and collide with one another.

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What type of tectonic plate boundary involves a collision of plates?

• transform

• divergent

• convergent

• obstructive

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Who is the scientist who proposed Continental Drift Theory?

• Albert Einstein

• Alfred Wegener

• Isaac Newton

• John Dalton

The theory of ​ (a)   was proposed by Alfred Wegner in 1912.

• Continental Drift

• Plate Tectonics

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Mia and Noah are working on a geography project about the history of Earth's continents. They come across the theory that explains the movement of continents over geological time. They want to know the name of the scientist who proposed the continental drift theory. Can you help them out? Who is it?

• Alfred Wegener

• Harry Hess

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Who came up with the theory of continental drift?

• Harry Hess

• Albert Einstein

• Alfred Wegener

• Bill Nye the Science Guy

Which two continents did Wegener notice fit together like pieces of a puzzle?

• Africa and North America

• South America and Africa

• South America and Europe

• Asia and South America

How did fossil evidence support Wegener's hypothesis of continental drift?

• Similar fossils are found along continental margins that appear to join together.

• Fossils are found in areas where present-day climate could not have supported the organisms that made the fossils.

• Similar fossils of land-dwelling dinosaurs are found on continents separated by oceans.

• All of the above.

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