Science Lesson 2 Test

What are free-swimming ocean animals called?

• Benthos

• Plankton

• Nekton

• Seamount

What is the part of the continent that extends from a shoreline out into the ocean?

• Continental shelf

• Mid-ocean ridge

• Trench

• Continental slope

What is a large stream of water flowing in oceans, in rivers, and in some large lakes called?

• Wave

• Current

• Thermocline

• Salinity

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

What is the ocean layer between about 300 meters below the surface, where the temperature drops sharply?

• Continental slope

• Thermocline

• Trench

• Mid-ocean ridge

What is the steep slope between the continental shelf and the deep ocean floor called?

• Continental slope

• Seamount

• Trench

• Mid-ocean ridge

What are organisms that live on the ocean floor called?

• Plankton

• Nekton

• Benthos

• Seamount

What is the term for the saltiness of water?

• Salinity

• Thermocline

• Wave

• Current

What is a deep valley on the ocean floor called?

• Trench

• Seamount

• Mid-ocean ridge

• Continental slope

Tags

NGSS.MS-ESS2-3

What is the up-and-down motion of water caused by wind energy moving through the water?

• Current

• Wave

• Thermocline

• Salinity

What are tiny organisms that live at or near the ocean surface called?

• Benthos

• Nekton

• Plankton

• Seamount