Properties of Water

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

The reason the water balloon did NOT pop while held over a flame is water's _________.

• Less dense than air.
• Hydrogen bonds between water molecules.
• polarity.
• high specific heat capacity.

Tags

NGSS.MS-PS1-4

Water is a universal solvent because it...

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

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

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

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

What property of water allows water to flow against gravity?

• Polarity

• Cohesion

• Capillary Action

• Adhesion

What is the gaseous form of water called?

• Steam
• Water vapor
• Vapor
• Water mist

Rain sticking to the car is an example of - 

• adhesion
• cohesion