RC: Unit 4 L1 Continental Drift

______ is the scientist that hypothesized that Earth’s surface moves.

• Alfred Wegener

• Mary Anning

• Albert Einstein

• Isaac Newton

Wegener stated that all the continents were once one supercontinent called ______.

• Pangaea

• North America

• Rodina

• Vaalbara

The constant movement of the surface of the Earth is called _____.

• continental drift

• ocean drift

• plate tectonics

• mid-ocean ridges

Wegener stated that the _____ of South America, Africa, India, and Australia were cooler when the continents were together.

• climates

• temperatures

• oceans

• air masses

Similar fossils of _____ were found in South America, Africa, India, and Australia.

• plants

• bacteria

• insects

• elephants

Common ______ formations in Europe and North America support the continental drift theory.

• rock

• fossil

• oceanic

• architectural

New crust is found at the center of the _____, proving the movement of the seafloor and the surface of the Earth.

• mid-ocean ridge

• Earth

• ocean

• Himalayan Mountains

Identify THREE items Wegener used as evidence to support his continental drift theory.

• fossils

• rocks

• weather

• climate

• plants

The theory of continental drift was not widely accepted until evidence of _____ was discovered.

• seafloor spreading

• global warming

• gravity

• evolution

_____ is the process by which new oceanic crust is formed at mid-ocean ridges, as the seafloor spreads apart.

• Seafloor spreading

• Continental drift

• Plate tectonics

• Subduction