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Separating Materials- Alien Soup

In science, Year 5 created a concoction called Alien Soup made up of sand, paperclips, pasta, salt and water.  All was going well until we realised that too much salt had been added to the mixture!  Luckily, we were experts in sieving, filtering, magnetic attraction and evaporation and could use these skills to remove the ingredients one at a time.  We realised that retrieving the salt was going to take a while as it had dissolved into a solution of salt water.  Evaporation was the process needed and we will be watching our samples very carefully waiting for those salt crystals to appear.  Phew! What an exciting afternoon.