Unit 11 Oceans Review

Which geological feature is formed by the movement of tectonic plates on the ocean floor?

• Oceanic trenches

• Coral reefs

• Sand dunes

• Icebergs

Tags

VA.4.7.a

Where is the ocean deepest?

• ocean trench
• volcanic island
• abyssal plain 
• mid-ocean ridge

What is the temperature, salinity, and density like at the surface zone of the ocean (top) as compared to the deep zone (bottom) of the ocean?

• colder temperature, more salinity, and more dense

• colder temperature, more salinity, and less dense

• warmer temperature, less salinity, and less dense

• Warmer temperature, less salinity, and more dense

Which of the following organisms is a producer in the ocean ecosystem?

• Shark

• Seaweed

• Dolphin

• Jellyfish

Tags

VA.4.7.c

The number of organisms increase as the ocean depth decreases.

• True

• False

What is the main cause of tides in the ocean?

• Wind

• Earth's rotation

• Moon's gravity

• Sun's heat

Tags

VA.4.7.b

The Gulf Stream is

• an airplane that is really cool.

• a high powered water hose.

• a strong current located off the east coast of the U.S.

• a hurricane that formed in the Pacific Ocean.

Tags

NGSS.MS-ESS2-6

Where do warm currents originate from?

• the Equator

• the poles

• Hawaii

• Iceland

Tags

NGSS.MS-ESS2-6

Algae and other producers need a lot of sunlight to survive in the ocean. Which part of the ocean would they most likely live in?

• Abyssal plain

• Trench

• Continental Shelf

• Continental Slope

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The density of ocean water is affected by temperature and ______________.

• salinity

• warmth