Oceans Review

What percent of the ocean is water by mass?

• 90%

• 96.5%

• 80%

• 85%

What percentage of concentration of the ocean is salt?

• 10%

• 5%

• 3.5%

• 1%

What varies as you go deeper in the ocean? (May be more than one answer)

• Temperature

• Salinity

Surface waters are constantly heated by the __________ and stirred by the __________

• Sun, wind

• Sun, sun

• wind, wind

• Wind, sun

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

In the pycnocline zone, ____________ increases radically with depth

• Density

• Temperature

• Wind

• Speed

The water in the deep zone is...

• Dense and sluggish

• Hot and in constant movement

• Slightly cool and slightly slow

Tags

NGSS.MS-PS1-4

What vertical zone of the ocean is 80% of the water by volume?

• Surface waters

• Pycnocline

• Deep zone

Which of the following is not a reason the ocean moves?

• Influence global climate and key for sea travel

• Transport heat, nutrients, pollution, and larvae

• Varies in speed

• Unaffected by density differences

Tags

NGSS.MS-ESS2-6

What type of plankton are microscopic plants?

• Phytoplankton

• Zooplankton

What type of plankton is zooplankton?

• Microscopic plants

• Microscopic animals