In science, 5EB @ RF have been looking at materials to see if there are soluble or insoluble. We found when a substance dissolves, it might look like it has disappeared, but in fact it has just mixed with the water to make a transparent (see-through) liquid called a solution. Substances that dissolve in water are called soluble substances. When we mixed sugar with water, the sugar dissolved to make a transparent solution. Salt, we found is soluble in water too. 

Substances that do not dissolve in water are called insoluble substances. for example, when you mix sand or flour with water, they do not dissolve- when we carried out the experiment and mixed flour with water, we were left with dough.

Next week, we will put our science caps back on and we will look at how to recover materials from a solution.  

Do you think we will be able to recover sand when mixed with water?

Do you think we will be able to recover the salt from water and how?