Earth Science Abeka Chap 6 Oceans

What substance makes up most of the salt in the ocean?

• magnesium sulfate

• potassium fluoride

• sodium chloride

• calcium chloride

Tags

NGSS.MS-PS1-1

Why can icebergs float in seawater?

• they are less salty than seawater

• they are more salty than seawater

• they are less dense than seawater

• they are more dense than seawater

What are oceanographic tools that are highly maneuverable robot linked to a support ship by cables?

• AUV

• DSV

• ROV

• FLIP

What type of current is made of seawater mixed with mud or silt and can erode the ocean floor to produce submarine canyons?

• salinity current

• upwelling

• turbidity current

• countercurrent

What is a huge, muddy valley that cuts into the deep ocean floor?

• submarine canyon

• ocean basin

• trench

• shelf break

What is a circular coral-reef island that grows around an underwater volcano?

• sandbar

• atoll

• guyot

• rift

What are large waves created by underwater disturbances called?

• breakers

• ocean swells

• tsunamis

• whitecaps

What is the main factor that affects the color of the oceans?

• water temperature

• surface relfection

• natural color

• impurities

What is a circular paths that ocean currents move in called?

• gyres

• upwelling

• breaker

• surf

Tags

NGSS.MS-ESS2-6

What is an upward-flowing current that occurs when a land breeze pushes surface water away from the coast?

• upwelling

• countercurrent

• ocean swell

• undertow

Tags

NGSS.MS-ESS2-6