Science B21: The Candle See-Saw


Award-winning video and lesson investigations for young children on the topic of movement

Product Description

Video and lesson investigations on the topic of movement. Key concepts include:

  • As wax drips from one end, that end becomes lighter so the candle tips the other way. The motion speeds up as the candle gets shorter, rather like a pendulum which swings more quickly the shorter it is.
  • The candle begins rocking because of an imbalance of mass from one side of the candle.
  • The motion continues because each side of the candle alternately has a greater loss of mass making it, for a moment, lighter.


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