The Metric System


commonly used units:

weight: gram (g) and kilogram (kg)

length: millimetre (mm), centimetre (cm), metre(m) and kilometre (km)

capacity: litre (l)

Key Skills

  • change from am and pm time to 24 hour clock
  • change from one metric unit to another e.g. mm into cm
  • approximate weights, lengths and capacities of everyday objects
  • calculate involving time e.g. minutes between 6.30 am and 1.00 pm


masscapacitygramtonne, litre