Teaching overview

Learning points

  • Diesel-electric submarines have two separate power sources: diesel engines and batteries.
  • Diesel engines need oxygen to burn fuel, which means submarines must come to the surface every few days.
  • Nuclear power does not need oxygen, which means nuclear submarines can stay underwater for a long time.

Curriculum keywords

  • Energy
  • Fuels
  • Engineering

Spark a discussion

  • What powers modern submarines?
  • How long can submarines stay underwater?
  • Why do submarines need to resurface?

Explore our resources

Complete your lesson with teaching resources on nuclear energy from Tigtag.

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Discover free online CPD for primary science from Reach Out CPD.

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