Science Week lesson plan: Chocolate structures (EYFS/KS1/KS2)

Science

11th March 2016

Science Week lesson plan: Chocolate structures (EYFS/KS1/KS2)

Demonstrate how to use melted chocolate to ‘weld’ together edible items to create super-yummy chocolate structures.

Science Week lesson plan: Chocolate structures (EYFS/KS1/KS2)

Resources

  • Lots of chocolate in all shapes, sizes and types
  • Marshmallows, cereal hoops and other small food items
  • Reusable, metal water bottles
  • Hand-hot water

Show

  1. Add hand-hot water to the metal bottle and put the lid on firmly.
  2. Hold the edge of a piece of chocolate against the bottle’s side, keeping hands away from the bottle’s surface.
  3. When the edge of the chocolate piece has melted, use as a ‘cement’ to join it to another piece of chocolate or to other edible items.

Explain

When heated, chocolate undergoes a physical change, from a solid to a liquid. As it cools it returns to being a solid. Chocolate melts between 30–40°C which is why chocolate is ‘melt in the mouth’.

Suggest

  • Can you make a tall chocolate tower?
  • What other super-structures could you make?
  • Does some chocolate make better ‘cement’ than others?
  • How strong are your chocolate structures?

Download PDF

Download a handy PDF version of this lesson plan for you to keep.

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