Activity description and learning aims:
  • The pupils are supposed to build a working model of a hydroelectric power plant and power an electric device (e.g. a lamp) with it. They may copy design ideas from existing plants and should make a list of needed material. Try and error methods may be necessary to get everything working. They should then determine the power output of their model.
  • knowledge: energy conversion in a hydroelectric power plant; functional principles and properties of hydroelectric power plants;
    inquiry: observation; description; creating and proving a hypothesis; systematizing; planning, conducting and evaluating design task; using models; comparison
    communication: online research; literature research; lab notes; schemes; manuals; group discussion; tables; diagrams; formula
    appraisal: evaluation of design task; controversy about hydroelectric power plants
  • see unit description
Suggestions for use:
  • Pupils should determine possible influences on the power of a hydroelectric power plant and test these out, then present their findings easy to understand.
  • An industry visit at a hydroelectric power plant or expert interview is recommended.
Recommended questions:
  • How does a hydroelectric power plant work?
  • Which types of hydroelectric power plants exist, which are planned?
  • How much energy can be generated by your hydroelectric power plant?
  • Which values influence the power of a hydroelectric power plant?
  • Why are hydroelectric power plants so expensive?
  • What do you need for building a hydroelectric power plant? Which materials are useful?
  • Is your hydroelectric power plant efficient enough to …?
  • What do experts know about building a hydroelectric power plant?