2.2  Water

big ninja

Essential Idea:

Water is the medium of life 


  • Water molecules are polar and hydrogen bonds form between them
  • Hydrogen bonds and bipolarity explain the cohesive, adhesive, thermal and solvent properties of water
  • Substances can be hydrophilic or hydrophobic


  • Comparison of the thermal properties of water with those of methane
  • Use of water as a coolant in sweat
  • Modes of transport of glucose, amino acids, cholesterol, fats, oxygen and sodium chloride in blood in relation to their solubility in water