L.S- Dynamic Earth Module 7 Review

What is Pangaea?

• a supercontinent that all continents were once part of
• a supercontinent that all continents will be part of in the future
• an existing continent that is separating into small islands

Which of the following provides evidence for continental drift?

• vegetation
• soil types
• rock formations

True or false: Fossils of different organisms have been found on different continents that are now separated by oceans, providing evidence of continental drift.

• True
• False

The _______ ________ hypothesis suggested that continents are in constant motion on the surface of the Earth.

• Plate Tectonics
• Seafloor Spreading
• Continental Drift

What is a mountain range in the middle of the ocean?

• Continental Rift
• Mid-Ocean Ridge
• Ocean Trench

During which process does new oceanic crust form along a mid-ocean ridge and older oceanic crust move away from the ridge?

• Seafloor Spreading
• Atmospheric Convection
• Continental Tectonics

True or False: The Mariana Trench in the Pacific Ocean is the deepest landform on Earth.

• True
• False

When Magma reaches Earth's Surface, it's called

• Crystal
• Lava
• Rock
• Lithosphere

Which theory states that Earth's surface is made of rigid slabs of rock, or plates, that move with respect to each other?

• Plate Tectonics
• Continental Drift
• Seafloor Spreading

Tectonic Plates move about 1-9 _____ per year.

• meters (m)
• inches (in)
• miles (mi)
• centimeters (cm)