Continental Drift & Seafloor Spreading

The OLDEST seafloor is located? 

• Closest to the mid-ocean ridge
• Farthest from the mid-ocean ridge

What are Mid-Ocean Ridges?

• A chain of underwater waterfalls 
• A chain of underwater volcanos
• A chain of underwater mountains
• A chain of underwater rocks

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What technology was used during WWII to detect enemy submarines and produce the first map of the seafloor?

• Sonar
• Radar
• GPS

Tags

NGSS.MS-PS4-2

What does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time
• Continents are stationary and do not move
• The Earth is broken into lithospheric plates that move due to convection currents
• none of the above

Tags

NGSS.MS-ESS2-3

What is the correct order (starting from the surface) of Earth’s layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

What is Pangaea?

• the name of a German scientist

• the name of the supercontinent that existed millions of years ago

• another name for continental drift

• the name of an ancient fossil

Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?

• evidence from landforms

• evidence from fossils

• evidence from human remains

• evidence from climate

Most geologists rejected Alfred Wegener’s idea of continental drift because _______

• they were afraid of a new idea.

• Wegener was interested in what Earth was like millions of years ago.

• Wegener used several different types of evidence to support his hypothesis.

• Wegener could not identify a force that could move the continents.

In sea-floor spreading, molten material rises from the mantle and erupts _______

• along the edges of all the continents.

• along mid-ocean ridges.

• in deep-ocean trenches.

• at the north and south poles.

The layer beneath the lithosphere, where plates "float" and move on this layer. Also where convection currents occur.

• asthenosphere
• inner core
• mantle
• outer core

Tags

NGSS.MS-ESS2-3