Year 6 were given some dirty sea water this week to see whether they could clean it enough so it could be drunk. They used separating by hand, by sieving and by magnetism to get rid of the bigger pieces of rubbish. They then used filtering to clean the water further, removing the smaller particles of dirt. By the end their water was very clean however was still salty. Next week we will look at how we can remove the salt from the water!