Dynamic Ocean

Which ocean is represented by point D on the map?

• Pacific

• Atlantic

• Indian

• Arctic

Approximately how much of the Earth is covered by water?

• 71%

• 30%

• 50%

• 25%

Tags

NGSS.MS-ESS2-4

Which ocean is the deepest and largest ocean?

• Indian

• Arctic

• Atlantic

• Pacific

Which of the following is a process that increases the % salinity in the ocean?

• runoff from the land

• icebergs melting

• evaporation

• precipitation

Which of these is a source of salt in the ocean?

• underwater volcanic eruptions

• precipitation

• glaciers

• snow fall

What is the average salinity of the ocean?

• 2.5%

• 3.5%

• 4.5%

• 5.5%

What factor(s) influence the density of seawater?

• temperature

• salinity

• both temperature and salinity

• neither of these influence density

If two water samples of equal mass had equal salinities, which sample would be more dense? Sample A: 14⁰C or Sample B: 25⁰C

• Sample A

• Sample B

Tags

NGSS.MS-PS1-4

The ocean layer of rapid temperature change with depth is known as the

• deep zone

• trophic level

• pycnocline

• thermocline

Tags

NGSS.MS-PS3-4

Most ocean water is located in which zone?

• deep zone

• surface zone

• transition zone

• mixed zone

Tags

NGSS.MS-ESS2-4