Properties of Ocean Water

Bond A is a​ (a)   and is a​ (b)   bond. Bond B is a ​ (c)   and is a ​ (d)   .

• covalent bond
• strong
• hydrogen bond
• weak bond

Tags

NGSS.MS-PS1-1

Water vapor is a

• gas

• liquid

• solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When water evaporates, it changes from a​ (a)   to a​ (b)   .

• liquid
• gas

Tags

NGSS.MS-PS1-4

Salt water has a (a)   freezing point than fresh water.

• lower
• higher

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

For each of the four locations (A, B, C, D), match is the correct explanation of it’s salinity.

• C

• This region receives a large amount of freshwater input from a river, lowering its salinity.

• A

• This area receives an

  amount of rainfall that is higher than the rate of evaporation,

  and this lowers the salinity of the surface waters.

• B

• This is an enclosed sea, with few rivers delivering freshwater,

  but a high rate of evaporation.

• D

• This region experiences a large amount of ice melt during

  many months of the year, lowering the salinity.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

If a river is flowing out to the sea very slowly, and there is little mixing occurring from wind and waves, which

of the options would you expect to occur?

• The freshwater flowing in would stay on the surface and form a layer over the saltwater

• The freshwater flowing in would sink to the bottom and form a layer under the saltwater

Tags

NGSS.MS-ESS2-4

This instrument is called a (a)   and it measures​ (b)   .

• refractometer
• thermometer
• hydrometer
• salinity
• temperature
• flow rate

The salinity of this sample is __ppt.

Tags

NGSS.MS-PS1-2

Click on the sample that has the highest salinity. *hint - use a calculator

This beaker contains 600 mL of water and 90 grams of salt. Calculate its salinity in grams/milliliter.