In Science this term, we are investigating mixtures and solutions in Chemistry. Last week, the students were given a sorting task during which they identified and categorised different mixture separation techniques from photographs.
This week, the students experimented with a variety of separation techniques such as decanting, sieving, magnetic separation, filtering and visual separation in a series of hands-on experiments. They were required to mix a base substance (sand) to another substance and predict what the result would be: a solution or a mixture. They were then asked to choose two techniques to use to try and separate their solution or mixture and to reflect on the effectiveness of their chosen techniques.
It was a messy but very engaging lesson.