Ocean chemistry and structure

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

• atmosphere

• photosynthesis of aquatic plants and algae

• melting of sea ice

• freezing of seawater

Tags

NGSS.MS-LS1-6

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-ESS3-4

Carbon dioxide diffuses into the ocean and combines with water (H₂O) to form carbonic acid (H₂CO₃₎. This ultimately breaks down and releases _________________________ , causing the water to be more acidic.

• sodium chloride

• calcium carbonate

• hydrogen ions

• chlorophyll

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• True

• False

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.MS-ESS3-4

NGSS.MS-LS2-4

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

Which will heat up slower?

• water

• lead

• granite

• iron

Tags

NGSS.MS-PS1-4

Which of the following best explains why the sand at the beach is hotter than the water?

• Sand has a higher specific heat than water.

• Sand has a lower specific heat than water.

• There is more water than sand at the beach.

• There is more sand than water at the beach.

The phase change from water vapor to liquid water is known as...

• evaporation
• precipitation
• condensation
• sublimation

Tags

NGSS.MS-ESS2-4