8th Grade Unit 7 Test Review

Who proposed Continental Drift?

• Alfred Wegener

• Harry Hess

• Albert Einstein

• John Rutherford

hypothesis that Earth was a single landmass that slowly drifted apart

• Continental Drift

• Theory of Plate Tectonics

This evidence supports Continental Drift:

• Sea-Floor Spreading, Magnetic Reversal, Locations of earthquakes and volcanoes

• Continents fit together, matching rocks and fossils, climatic evidence

This evidence supports the Theory of Plate Tectonics:

• Sea-Floor Spreading, Magnetic Reversal, Locations of Earthquakes and Volcanoes

• Continents fit together, matching rocks and fossils, climatic evidence

What is the name of the super continent that was thought to exist 200 million years ago?

• Pompeii

• Pangea

• Eurasia

Theory that Earth's lithosphere moves around on the asthenosphere

• Continental Drift

• Theory of Plate Tectonics

Which came first- the hypothesis of Continental Drift or the Theory of Plate Tectonics?

• Continental Drift

• Theory of Plate Tectonics

The __________________________ is the the rigid, solid outer layer of the Earth that consists of the crust and the rigid upper part of the mantle; divided into tectonic plates.

• asthenosphere

• lithosphere

• atmosphere

• hydrosphere

The __________________________ is the slow-flowing layer of rock just below the lithosphere; the part of the mantle that flows and moves the plates of the Earth.

• asthenosphere

• lithosphere

• atmosphere

• hydrosphere

Scientists believe that ______________________ currents within the asthenosphere are responsible for the movement of the plates that form the Earth's crust.

• conduction

• contraction

• convection