This morning, Year 4 had a very tricky challenge! We have found out that our water supply on board ship has been contaminated. We need to purify the water so that we can survive the journey.

Mr Swallow got out a bunch of containers, sieves, funnels, colanders, cups cloth and other things and asked us to choose any equipment we wanted for our team. We then had to come up with our own plan about how to use it! What equipment should we use?  How should we use it? What order should we use it in? Our teams discussed what to do and came up with a plan!

 

Down on the field, we experimented with the equipment to try and remove all the horrid things from our cup of water, to make it safe enough to drink!

Some of them worked better than others!

We looked at how the team who had got the cleanest water had done that worked well. They had:

used the filters with the biggest holes first, to get rid of any big particles and not clog up their filter.

worked methodically from large hole filter down to smallest.

worked really carefully, keeping equipment clean and not re-using dirty containers.

Worked patiently, pouring slowly so they didn’t lose any water and giving the water plenty of time to drain through the sieves and muslin.

 

We all adopted their way of working and our results improved dramatically!!!