Ocean Chemistry and Structure/ Technology

Ocean temperature, salinity, dissolved gases, and density are the same in all parts of the ocean.

• True

• False

Tags

NGSS.MS-ESS2-4

NaCl (Sodium chloride) is the only kind of salt in the ocean.

• True

• False

Oxygen (O₂), Carbon dioxide (CO₂), and Nitrogen (N₂) are all _________________________ that are important to marine life.

• ions

• dissolved gases

• carbohydrates

• carbon compounds

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Substances that are dissolved in a solvent (water) and can be either solids, gases, or other liquids:

• solutes

• solvents

• bases

• lipids

Tags

NGSS.MS-PS1-2

Sodium chloride (NaCl) is an example of a dissolved _________________.

• liquid

• solid

• gas

• acid

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Carbon dioxide (CO₂) enters the ocean from the ______________________________.

• atmosphere

• photosynthesis of aquatic plants and algae

• melting of sea ice

• freezing of seawater

Carbon dioxide (CO₂) is also produced in the ocean by ______________________________.

• photosynthesis of marine plants

• cellular respiration of marine organisms

• sea water freezing

• increased alkalinity

Tags

NGSS.MS-LS2-3

Density of seawater is affected by these two factors:

• clarity and color

• hydrogen ions and dissolved oxygen

• transparency and turbidity

• temperature and salinity

Ocean acidification occurs when too much _______________________________ enters the ocean from the atmosphere.

• calcium carbonate

• carbon dioxide

• sulfur dioxide

• nitrogen gas

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

As a result of __________________________, there is not enough calcium carbonate available, needed by corals, crustaceans, mollusks (snails, etc).

• chemosythesis

• photosynthesis

• ocean acidification

• cellular respiration

Tags

NGSS.HS-ESS3-5