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Salt Crystal Rocks

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Salt Crystal Rocks

An easy science experiment that uses simple ingredients to form salt crystals.

Materials needed:

  • PVA glue
  • food colouring
  • salt crystals
  • bowl
  • tray
  • glitter
  • spoon

What to do:

  • Pour 2 tbsp of PVA glue into a bowl.


  • Add a squirt of food colouring.

  • Mix the glue and food colouring together.

  • Add 3 tbsp of crystal salt.

  • Mix together.

  • Using your hands, create a rock shape.

  • Dab PVA glue on top of the rock you created.

  • Put it in a tray.

  • Sprinkle coloured glitter on top.

  • Leave for 24 hrs to dry.

Hints and Tips:

  • These work really well! The longer you leave them the harder they become.
  • Add them to clear jars and call them fairy rocks.
  • After mixing salt and PVA glue together, be quick to form your rocks.
  • Experiment with using less PVA glue more salt or less salt and more glue to see what happens. Compare these results with each other.

Additional Info

  • Appropriate Age: 2 year+
  • Number of Children: Individual (1), Couple (2), Few (3)
  • Developmental Milestones:

    Relates what they are doing with others
    Observed and imitates adults actions
    Understands consequences of their actions
    Explores materials
    Recognises similarities and differences
    Can follow 2 or more directions
    Pays attention to activities for longer periods of time

  • Play Based Learning: Sensory Play, Exploratory Play, Manipulative Play
  • Interest Areas: Science and Nature, Sensory Play
  • Games Categories: Learning Games, Manipulation Games, Science Experiments, Sensory Games
  • EYLF Outcomes: Learning Outcome 4
  • Sub Outcomes:

    4.1 Children develop dispositions for learning such as curiosity, cooperation, confidence, creativity, commitment, enthusiasm, persistence, imagination and reflexivity.

    4.2 Children develop a range of skills and processes such as problem solving, inquiry, experimentation, hypothesising, 

Created On August 9, 2018
More in this category: « String Maze   ||   Shaving Cream Rain Clouds »
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