We took apart plugs to look at the different components inside. We then discussed which materials each component was made from and why.
We used cosmic balls to investigate conductivity. First we made a circuit by linking arms to check that the cosmic ball worked. When one pair stopped holding hands the ball no longer buzzed. We then investigated which materials/ objects we could insert into the gap to make the ball buzz again.
The children have completed many practical activities to explore the processes of dissolving, sieving, filtering and evaporation.