Harry Hess

What do the different colored stripes represent in the picture?

• the ocean crust reversal from west to east

• formation of new sea plants that grew on the ocean floor

• the reversal of the continental plates

• the reversal of the magnetic poles

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NGSS.HS-ESS1-5

He proposed the Seafloor Spreading Theory.

• Harry Mess

• Hary Hess

• Harvy Hess

• Harry Hess

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Seafloor spreading...

• creates new oceanic crust

• destroys or recycles crust

• creates new continental crust

• creates old crust

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NGSS.HS-ESS1-5

Who is credited with the development of the theory of seafloor spreading?

• Alfred Wegener

• Harry Hess

• Marie Tharp

• Charles Darwin

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What was Harry Hess's profession?

• Geologist

• Biologist

• Chemist

• Physicist

Which technology did Harry Hess use to map the ocean floor?

• Sonar

• Radar

• Satellite Imaging

• LIDAR

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NGSS.HS-PS4-5

Harry Hess's theory of seafloor spreading helped to explain which larger scientific theory?

• Theory of Evolution

• Plate Tectonics

• Quantum Mechanics

• Relativity

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NGSS.HS-ESS1-5

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What geological feature did Harry Hess study to develop his theory?

• Mid-ocean ridges

• Volcanoes

• Earthquakes

• Mountain ranges

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NGSS.HS-ESS1-5

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In which decade did Harry Hess propose his theory of seafloor spreading?

• 1940s

• 1950s

• 1960s

• 1970s

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NGSS.HS-ESS1-5

Harry Hess's work provided evidence for which of the following processes?

• Continental Drift

• Photosynthesis

• Nuclear Fusion

• Erosion

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NGSS.HS-ESS1-5