Rowan and Fir investigated reversible changes

We tested filtration, magnetic attraction and sieving in order to separate the following:

  • Sand suspended in water (suspension).
  • Salt dissolved in water (solution).
  • Raisins in flour (mixture).
  • Paperclips in rice (mixture).

As you can see, we succeeded.

We then discussed evaporation and how the water would evaporate from the salt and water solution, leaving behind salt crystals.

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