Lesson Check U4M2L2 - Development of a Theory (Pratte)

What theory describes the movement of Earth's lithosphere and accounts for Wegener's hypothesis on Continental Drift?

• Plate Tectonics

• Convection Currents

• Seafloor Spreading

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

A vast, underwater mountain chain is called a(n) (a)   .

• mid-ocean ridge
• deep-sea trench

• rift valley

Tags

NGSS.MS-ESS2-3

Which of the following best explains the age of oceanic crust and ocean-floor features?

• seafloor spreading

• continental drift

• subduction

Tags

NGSS.MS-ESS2-3

The youngest rocks on the ocean floor are located (a)   .

• near continents

• at mid-ocean ridges
• far from mid-ocean ridges

The molten material deep inside Earth from which igneous rocks form is called (a)   .

• magma
• lava
• sediment

New ocean crust is continually formed at (a)   .

• trenches
• mid-ocean ridges
• subduction zones

What new technology was used to map the seafloor beginning in the 1940s and 1950s?

• LASER beams

• SONAR

• GPS

Drag the labels over to match the correct order A - B - C - D -E (a)   ​ ​ ​ ​ (b)   ​ (c)   ​ (d)   ​ (e)  

• mid-ocean ridge
• rift valley
• magma
• lava
• younger crust
• older crust

Tags

NGSS.MS-ESS2-3