Ocean Unit Review

Which location is likely to have the greatest water pressure, the coldest temperatures, and the smallest number of living organisms?

• Continental Shelf

• Continental Slope

• Abyssal Plain

• Trench

Which level of the ocean does plankton live?

• Uppermost Sunlit Zone

• Bottom Most Trench

• Twilight Zone

• Dark Midnight Zone

Tags

NGSS.MS-LS2-1

Which level of the ocean would plankton not live?

• Uppermost Sunlit Zone

• Bottom Most Trench

• Twilight Zone

• Dark Midnight Zone

Which best describes the part of the ocean called the continental shelf?

• A flat underwater valley

• A region of mountains in the deep ocean

• A region with a higher water pressure

• A shallow area of sediment near the shore

Which of these are the deepest parts of the ocean?

• Abyssal plains

• Ocean trenches

• Continental slopes

• Continental shelves

Which of the following would decrease as a diver travels deeper into the ocean? (Choose all of the correct answers!)

• Pressure

• Light

• Temperature

• Salinity

The main difference between ocean water and lake water is that ocean water contains

• salt

• algae

• plants

• oxygen

High and low tides on the coast are caused mostly by

• underwater earthquakes

• the gravity from the moon

• storms over the ocean

• the tilt of Earth

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4

Which of the following are identifying characteristics of the deepest levels of the ocean. (Choose all that apply)

• Some light

• No light

• 90 percent of all ocean life

• Greater water pressure

Phytoplankton produce most of the Earth's ___________.

• Carbon Dioxide

• Oxygen

• Water

• Electricity

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6