Separating and sieving

To introduce our new Science topic, ‘Separating materials’, Year 5 had a chance to come up with ways on how to sieve and separate different materials. They were given dried pasta, rice and sand. These were mixed together and the children had to come up with a way to isolate each of the materials.

With sieves, the children found they could separate one of the materials as one (or two) of the materials would fall through the small holes. However, they quickly realised that it would take a sieve with different sized holes to separate the 2 materials left over.

In our lesson, we also came up with different things we want to find out this term, all to do with sieving, dissolving, filtering and evaporating. With lots of experiments and investigations, we will try to answer all their questions!