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Energy and change

Natural Sciences

After this lesson, you should be able to:

  • Describe the workings of a simple cell as a system in which certain chemical reactions take place causing a flow of electrons in an external circuit connected to it
  • Explain the meaning of the terms electrolyte, electrode and terminal
  • Use a lemon to make a cell
  • Know how to connect cells in series and in parallel
  • Know why and how to dispose of old batteries


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