Properties of 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

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

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.

Water (fresh water) freezes at what temperature?

• 0 degrees Celsius (32 degrees Fahrenheit)
• -10 degrees Celsius (14 degrees Fahrenheit)
• 10 degrees Celsius (50 degrees Fahrenheit)
• -5 degrees Celsius (23 degrees Fahrenheit)

The density of ice is (a)   g/cm³ and the density of liquid (fresh) water is ​ (b)   g/cm³.

• 0.9
• 1.0
• 1.2

The average salinity of the ocean is ​ (a)   ppt which is the same thing as ​ (b)   %.

• 35
• 3.5
• 350