Chapter 7 Vocab Review

Continents slowly moved over Earth's surface.

• Continental Drift

• Pangea

• Tectonic Plate Theory

• Sea-floor spreading

"___________" is the name given to the single landmass that began to break apart about 300 million years ago and gave rise to today's continents.

• Pangea

• Tectonic Plate Theory

• Continental Drift

• Subduction

A ____________ is any trace of an ancient organism that has been preserved in rock.

• Fossil

• Artifact

• Antique

• Crystals

___________ is an undersea mountain chain where new ocean floor is produced.

• Mid-ocean ridges

• Deep-ocean trenches

• Subduction

• Seafloor spreading

___________ is the process by which molten material adds new oceanic crust to the ocean floor.

• Seafloor spreading
• Deep-ocean trenches
• Subduction
• Mid-ocean ridges

__________ is a deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle.

• Subduction
• Mid-ocean ridges
• Seafloor spreading
• Deep-ocean trenches

_____________ is the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle.

• Subduction

• Seafloor spreading

• Deep-ocean trenches

• Mid-ocean ridges

____________ is a section of the lithosphere that slowly moves over the layer beneath it, carrying pieces of continental and oceanic crust.

• Fault

• Plate

• Stress

• Plate tectonic

__________ are plates that move apart.

• Divergent boundaries

• Convergent boundary

• Transform plate boundary

• Tension

____________ are plates that come together.

• Convergent boundary

• Divergent boundaries

• Transform plate boundary

• Compression