Water Unique Properties in Science

What property of water helps to moderate earth's temperature?

• adhesion

• chohesion

• Specific heat capacity

• Latent heat of vaporization

Tags

NGSS.MS-ESS2-4

At what temperature does water Freeze?

• 0^o C

• 100^o C

• 32^o C

• -273^o C

What two elements make up water?

• Helium and oxygen

• Hydrogen and oxygen

• helium and carbon

• oxygen and carbon

Tags

NGSS.MS-PS1-1

Water is a universal solvent because it...

• It can be found anywhere

• It freezes when it gets cold

• floats when frozen

• Dissolves most substances

Which of the following is the correct molecular structure for water, H₂O?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Large bodies of water do not quickly fluctuate in temperature. Why?

• Water is a solvent.

• Water has a high heat capacity.

• Water acts as a buffer.

• Water is non-polar.

Tags

NGSS.MS-PS3-4

Water striders can walk across the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?

• The insects are light enough so they do not break the hydrogen bonds holding the water molecules together

• The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.

• The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.

• The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next

Tags

NGSS.MS-PS2-5

How many hydrogen atoms are in a water molecule?

• 5

• 1

• 2

• 0

Tags

NGSS.MS-PS1-1

At what temperature does water Boil?

• 0^o C

• 100^o C

• 32^o C

• 212^o C

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

A water strider can skate along the top of a pond because:

• covalent bonds result in water cohesion (surface tension)

• hydrogen bonds result in water cohesion (surface tension)

• water striders have adapted to take advantage of water cohesion

• water striders are afraid of water and avoid it