Soluble and Insoluble

Soluble and Insoluble Substances

Year 5 have been looking at the properties of materials and coming up with sensible predictions.

Looking at a variety of everyday objects that you would find around most houses; including table salt, squash, baking powder, sugar and flour, they have predicted which would be soluble and which would be insoluble. 

Knowing this is science they were adamant that the tests should be fair. so were diligent in measuring the water and also the substance.

Agitating (mixing) the water with the substance within for a minute was fun... letting them loose with the stopwatch and stirrers was an adventure.

They then waited 10 minutes to see what happened to the mixtures / solutions and recorded their results.

It was amazing how they then went on to work out what could have been done differently, to all of the mixtures or solutions, to see if it would have had an impact on the results (not every substance dissolved or only some of the substance did).

The classes were surprised by some of the substances and their solubility (alka-selzer) as when they looked at the properties of the substance they predicted it would not be soluble.