Ionising Radiation
Quantum and Nuclear

Jelly 'fibre'

Teaching Guidance for 14-16 PRACTICAL PHYISCS

To make approx 22 cm long jelly fibre you need:

  • mould approx 2 cm x 2 cm x 24 cm (can be made from a length of electrical trunking with pieces of plastic credit card glued across the ends)
  • cling film to line mould
  • 15 g powdered gelatine (preferably not the ‘veggie’ sort as it does not set well)
  • 150 ml water

Mix the gelatine according to the instructions on the packet and pour into the lined mould.

When set, use the cling film to lift the jelly ‘fibre’ from the mould.

Ionising Radiation
is used in analyses relating to Radioactive dating
can be analysed using the quantity Half-Life Decay Constant Activity

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