The Ocean Floor

How are divergent boundaries between tectonic plates different from convergent boundaries?

• Plates move north at divergent boundaries, and south at convergent boundaries.

• Plates move downward at divergent boundaries, and upward at a convergent boundaries.

• Plates move apart at divergent boundaries, and come together at a convergent boundaries.

• Plates form trenches at divergent boundaries, and mountains at convergent boundaries.

Why is much of the ocean floor so difficult to see?

• The ocean floor is covered in seaweed and other forms of plant life.

• Water distorts our view of the ocean floor.

• Sunlight cannot reach that far down.

• The ocean floor is buried under ash from volcanic eruptions.

A continental slope is most similar to which land feature?

• A valley

• A mountain

• A beach

• A cliff

Where might you find a continental shelf?

• A few dozen kilometers off the coast of Californina

• Ten kilometers off the coast of Florida

• In the exact center of the Pacific Ocean

• Where the Gulf of Mexico meets the shore

An abyssal plain is most similar to which land feature?

• a mountain

• a prairie

• a valley

• a canyon

What part of the Earth makes up the seafloor?

• The mantle

• The core

• The crust

• The mesosphere

In the movie, one of the boy's name was ...

• Wesley

• Bob

• Tim

• Mr. O

According to the movie, what is sediment?

• Seaweed

• The bodies of dead ocean creatures

• Rocks, dirt, sand, and pieces of organic material

• A type of coral

Where might you find an undersea volcano?

• In a mid-ocean ridge

• In an abyssal plain

• In a trench

• On a continental shelf

Tags

NGSS.MS-ESS2-3

Which event happens first?

• volcanic island emerges

• a seamount is formed

• a volcano begins erupting