Ocean Floor Brainpop

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

• a. Water distorts our view of the ocean floor

• b. Sunlight cannot reach that far down

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

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

3. A continental slope is most similar to which land feature?

• valley

• mountain

• beach

• cliff

4. An abyssal plain is most similar to which land feature?

• mountain

• prairie

• valley

• canyon

5. In the movie, Tim says that ocean currents deposit sediment on the ocean floor. What is sediment?

• seaweed

• bodies of dead ocean creatures

• rocks, dirt, sand, organic material

• type of coral

Tags

NGSS.MS-ESS2-3

6. What part of the Earth makes up the seafloor?

• crust

• mantle

• core

• mesosphere

Tags

NGSS.MS-ESS2-2

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

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

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

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

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

Where might you find an undersea volcano?

• mid ocean ridge

• abyssal plain

• in a trench

• on a continental shelf

Tags

NGSS.MS-ESS2-3

9. What happens to oceanic plates at convergent boundaries?

• a. One is forced underneath the other to form trenches

• b. They move in opposite directions

• c. They get bigger as new crust is formed

• d. They push against each other to form ridges

Tags

NGSS.MS-ESS2-3

10. Place the following events in sequence: A) A volcanic island emerges; B) A seamount is formed; C) A volcano begins erupting

• B A C

• B C A

• C A B

• C B A

What is a trench?

• Gently sloping, shallow area

• A deep, steep-sided canyon at a subduction zone

• A smooth and flat area on the ocean floor

• At the edge of the shelf, the ocean floor drops down an incline

Tags

NGSS.MS-ESS2-3