Properties of Water

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 become lighter than water

• low surface tension of water

Attractions between water molecules are called ....

• Covalent bonds

• Ionic bonds

• Polar bonds

• Hydrogen bonds

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

• Adhesion

• Capillary action

• Cohesion

• Surface tension

Water is polar because...

• The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

• The molecule has two poles, at which the it is colder than other regions of the molecule.

• 
  The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.

  
  

• The water molecule is neutral.

Bond created by the weak attraction of a slightly positive hydrogen atom to a slightly negative portion of another molecule is called ..........

• Polar molecule

• solution

• adehsion

• hydrogen bond

The tendency of molecules of the same kind to stick to one another is called...

• cohesion

• adhesion

• solution

• polar molecule

A molecule in which opposite ends have opposite electric charges is called .....

• Cohesion

• Polar Molecule

• Hydrogen bond

• Solution

Tags

NGSS.MS-PS1-1

Which properties of water are helpful for aquatic organisms? (3)

• Ice is less dense than liquid water so forms an insulating layer on ponds and polar seas/oceans

• Having a high specific heat capacity stops the temperature of ponds, lakes, and oceans fluctuating too much over a short period of time

• High latent heat of vaporization means ponds, lakes, seas, and oceans don't lose too much water on extremely hot days

• Hydrogen bonds make it easier for fish to swim

• 
  Being a polar molecule allows electric eels to become charged up quicker

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Water is a universal solvent because...

• it can be found anywhere

• it freezes when it gets cold

• it floats when frozen

• it dissolves most substances

Tags

NGSS.HS-ESS2-5

Which characteristic of water will allow a paperclip to remain floating on the surface of water?

• Adhesion

• Surface Tension

• Solvent properties

• non-polar