2 Plate Tectonics and Earth's Structure

True or False: The Earth's surface is moving at about the rate your fingernail grows.

• True

• False

What is Pangaea?

• the name of a German scientist

• the name of the super-continent that existed around 200 million years ago

• another name for continental drift

• the name of an ancient fossil

The geological theory of _______ states that pieces of Earth’s lithosphere are in constant, slow motion.

• subduction

• plate tectonics

• deep-ocean trenches

• sea-floor spreading

What are the two types of crust

• continental and oceanic

• ocean and upper

• lower and upper

• pizza and subway

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

Tags

NGSS.MS-ESS2-1

This layer of Earth is the thickest part

• crust

• outer core

• mantle

• inner core

Pangaea was an ancient supercontinent made up of...

• America, Greenland, and Europe.

• Antarctica, India, and America.

• all of Earth’s continents.

• South Africa, India, Australia, and South America.

The mechanism that moves continents is based on heat energy moving by

• Radiation in the core

• Conduction in the lithosphere

• Convection in the Mantle (Earth's interior)

• None of these options is true

What is the difference between the lithosphere and asthenosphere that makes up the mantle?

• The lithosphere is ismade of dense solid meal whle the asthenosphere is made of liquid molten metal

• The lithosphere is a mixture of gasses while the asthenosphere is made of solid rock

• The lithosphere is molten rock that moves while the asthenosphere is ridid and thin

• The lithosphere is made of solid rock while the asthenosphere is more flexible hot rock that moves.

A Plate Boundary where two plates move toward each other is called

• Convergent Boundary

• Divergent Boundary

• Transform Boundary

• Subduction