P5 Science Starz

Primary 5 had a great afternoon working with Rose and Roisin from Science Starz. They conducted an experiment to separate salt and sand from grit used on icy roads. They had to use a mortar and pestle to break the mixture down into a fine powder first before adding water for the salt to dissolve in. Then they put filter paper into a funnel which was on top of a conical flask. After that they poured the solution carefully in and watched as the filter paper captured the sand but let the salty water through. Finally they poured the salt water on to a tray and left it out overnight hoping that the water will evaporate. We can't wait to see if our experiment worked and we have salt in our trays.