oshc activities
Raw Art Day / Sand Mould Plaster Casting

Sand Mould Plaster Casting

Children press shapes into damp sand and fill the moulds with plaster to make casts. Hands-on sculpture with real materials.

How to run it

  1. Fill trays with damp sand.
  2. Press shells, hands or objects into the sand.
  3. Educator mixes plaster in a ventilated area.
  4. Pour plaster into moulds and let set.

You will need

  • plaster of Paris
  • sand
  • trays
  • shells or objects
  • dust masks
  • gloves
Make it easier or harderYounger children can press shapes; older children can mix with supervision.
SafetyOnly use sand moulds, never cast hands directly in plaster as it heats up and can burn; educators mix powder outdoors wearing masks.
My Time Our Place · Outcome 4Children explore materials and see how they change.

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