Plate Tectonics

Based on the current position of the continents, in what general direction did South America drift away from Pangaea?

• East

• West

• North

• South

Tags

NGSS.MS-ESS2-3

What evidence did Alfred Wegener use to support his theory of continental drift?

• Fossil discoveries

• The Himalaya Mountains

• Ancient maps of the world

• Charts of seismic activity

What is true of tectonic plates?

• They are constantly moving

• Earthquakes cause them to move

• They don't move for centuries at a time

• There are fewer and fewer of them

Where is Earth's heat energy most concentrated (dense)?

• The mantle

• The lithosphere

• The core

• The crust

Which of the following best describes the location of the mantle?

• Above the crust

• Between the crust and the lithosphere

• Between the crust and the core

• Beneath the core

What is the underlying force that drives plate tectonics?

• Ocean tides

• Volcanic eruptions

• The rock cycle

• Convection currents

Which of the following is true of Earth's landmasses?

• They are the upper part of the crust

• They are made of a single tectonic plate

• They are the densest part of the crust

• They were formed by earthquakes

Convection currents are powered by:

• Motion

• Pressure

• Heat

• Density

Which of the following plate interactions is most likely to form a mountain range?

• A transform boundary between ocean plates

• A transform boundary between continental plates

• A convergent boundary between continental plates

• A subduction zone between a continental plate and an ocean plate

When two plates that differ in _______ collide, volcanoes often form nearby.

• Speed

• Density

• Thickness

• Temperature