Water

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

When water and other liquids stick together to form drops or thin films called ________________.

• adhesion

• capillary action

• cohesion

• surface tension

molecule in which opposite ends have opposite electric charges

• cohesion
• polar molecule
• hydrogen bond
• solution

Tags

NGSS.HS-PS2-6

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Tags

NGSS.HS-ESS2-5

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.HS-PS2-6

A general definition of cohesion is the attraction of:

• particles of the same substance
• particles of a different substance
• particles of both the same and different substances
• particles of neither the same or different substances

A high specific heat means...

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

Tags

NGSS.MS-PS3-4

What do you call any substance that dissolves another substance?

• Solvent

• Height

• Atoms

• Oxygen

Which term refers to water having partial positive and a partial negative charge?

• cohesion
• surface tension
• polarity
• adhesion

Capillary Action

• The property of water that allows ice to float on the surface of liquid water

• The property of water that allows it to dissolve polar substances

• When water molecules stick to other surfaces

• The property of water that allows water to move up a thin tube (or the stem of a plant) by itself

Tags

NGSS.MS-ESS2-4