Water goes on quite a journey to reach our taps, safe and ready to drink. One of the many important steps in the process is filtration, which uses layers to sift containments out of the water. The kit here introduces how water gets cleaned by building a simple filtration system and more……. ● 3 x Gravel 80g ● 3 x Sand 80g ● 3 x Active Carbon 40g ● 5 x 100mm Filter Paper ● 6 x 45mm Filter Paper ● 1 x 50ml Measuring Cup

---