During Term 3 LS2 created water filters! Our goal was to filter out very dirty water using materials around the school and provided ones. My group first set off to walk around the school to find the things we needed. Although, we only had a limited amount of time outside to find our items and build our filters. Every group used a 1.5 l bottle to use as the main base of our water filters. The items provided was charcoal, coffee filters, cloth and rubber bands. In the end during our test we found out that the sand we had wasn't very fine so the sand just absorbed most the water so not very much filtered out.
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