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Salt Crystals

Compare these different methods of growing salt crystals.

Continue reading "Salt Crystals"





Salt Crystals

(water, salt, string, pencil, container)

  • Boil about 1 cup (250 ml) water.
  • Add 1/4 cup salt.
  • The solution will be supersaturated when salt crystals begin to collect on the bottom of the pan.

Two options for growing salt crystals:

  • Soak a piece of cardboard in the solution until it is saturated and sinks to the bottom of the pan. The cardboard will act as a template or base for crystal growth. Put the pan in a sunny location. Crystals will form as the water evaporates.
  • Simply place the pan of solution in a warm location, and allow crystals to grow without a template. Both methods work. The salt crystal will grow over several days.

Try several pans, and study how the growth of crystals varies between them.

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