This explanation text for year 3 and P4, linking to the topic Forces, describes in detail how locks work. Have a look at the locks on your front door – at least one of them is likely to be a ‘Yale’ or ‘cylinder pin-tumbler lock’.

This downloadable reading pack includes:

  • An A3 reading spread for you to print.
  • Reading comprehension question and answer sheets, differentiated using our magnifying glasses key (on the bottom right). One magnifying glass indicates easier and two means harder.
  • Discussion questions to use with a partner or as a whole class.
Year 3
Forces and magnets

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