Unit 9 - Earth Layers and PT

Who is the scientist who proposed Continental Drift Theory?

• Albert Einstein
• Alfred Wegener
• Isaac Newton
• John Dalton

Alfred Wegener named his single supercontinent ____________, which means "all Earth" in ancient Greek.

• Pandora

• Gandowandaland

• Pangaea

• Percia

What type of fossils were noticed by Wegener to be found on two different continents?

• Leaves and flowers
• Ice and mountains
• Plants and animals
• Dinosaurs and reptiles

True or False: The continental plates move so quickly that we can feel them.

• True

• False

Most geologists think that the movement of Earth's tectonic plates is caused by

• the rotation of the Earth.

• the Earth's magnetic field.

• subduction.

• convection currents.

When plates collide we get ________.

• crumbles

• volcanos

• trenches

• mountain ranges

Associated with transform boundaries.

• Volcanoes
• mountains
• trenches
• earthquakes

A location where two tectonic plates collide is known as a _________ boundary.

• Convergent
• Divergent
• Transform
• Spreading

Which layer of Earth flows slowly and causes the crust to move?

• Crust

• Mantle

• Inner Core

• Outer core

What is the correct order (starting from the surface) of Earth’s layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle