Continental Drift, Sea-Floor Spreading, Plate Tectonics

Wegener's idea that the continents moved slowly over Earth's surface became known as _______________________.

• continental drift

• moving continents

• puzzle theory

• Pangaea

Tags

NGSS.HS-ESS1-5

According to Wegener, the continents were once joined together in a supercontinent, or single landmass, about 300 million years ago. Wegener called the supercontinent ___________________.

• Pangaea

• Laurasia

• Gondwanaland

• Tethys

Any trace of an ancient organism that has been preserved in rock.

• fossil

• sedimentary organism

• preservation

• extinct

Tags

NGSS.MS-LS4-1

Wegener's hypothesis was that all continents were once joined together in a single __________________ and have since ______________ apart.

• landmass, drifted

• piece, broken

• time, drifted

• moment, fallen

Tags

NGSS.MS-ESS2-3

Wegener's evidence for continental drift included which of the following? Check all correct answers.

• Land Features

• Oceans & Continents

• Fossils

• Climate

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Wegener's theory of continental drift was rejected because he could not provide a satisfactory explanation for the force that pushes or pulls the continents. TRUE or FALSE?

• True

• False

Tags

NGSS.HS-ESS1-5

Scientists have long noticed that Earth's continents look as though they could fit together like pieces of a jigsaw puzzle. Which scientist said, "Doesn't the east coast of South America fit exactly against the west coast of Africa, as if they had once been joined?"

• Linnaeus

• Darwin

• Wegener

Tags

NGSS.HS-ESS1-5

An undersea mountain chain where new oceanic floor is produced; a divergent plate boundary under the ocean

• mid-ocean ridge

• sea-floor spreading

• deep-ocean trench

• subduction

Tags

NGSS.MS-ESS2-3

The process by which molten material adds new oceanic crust to the ocean floor

• mid-ocean ridge

• sea-floor spreading

• deep-ocean trench

• subduction

A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle

• mid-ocean ridge

• sea-floor spreading

• deep-ocean trench

• subduction

Tags

NGSS.HS-ESS1-5