Properties of Water

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.
• Water is a versatile solvent.
• Water has a high heat capacity.
•  Water acts as a buffer.

Tags

NGSS.HS-ESS2-5

When water sticks to itself, what is taking place?

• Cohesion

• Adhesion

• Capillary Action

• Surface tension

Capillary action is the result of

• adhesion

• cohesion

• change in matter (heat of fusion)

• both adhesion and cohesion

Tags

NGSS.MS-ESS2-4

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Tags

NGSS.MS-PS1-4

What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"

• Purity
• Polarity

• High heat capacity
• Expansion upon freezing

Tags

NGSS.MS-PS1-1

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

The tightness across the surface of water that enables paper clips to float is ____________.

• adhesion
• capillary action
• surface tension
• polarity

Which property of water allows it to form droplets when in liquid form?

• adhesion

• cohesion

• specific heat

• nature as a solvent

Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?

• Water expands as it freezes.

• Water is an excellent solvent.

• Water exhibits capillarity.

• Water is able to moderate temperature.

Tags

NGSS.MS-ESS2-4

Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead?

• Flooding would occur and animals would be forced to migrate
•  Harmful organisms living in water would reproduce at a rapid rate
• Organisms that are sensitive to changes in temperature would die
• Plants would not have enough water to effectively carry out photosynthesis

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1