The materials that I used are fabric, screening, rocks, a plastic bottle, a cup, and a tube. The problem we were trying to solve was that the water is very dirty and its the only water source. You are very thirsty and you need water. So we build a tool to help you clean the water. Engineering is important because engineering is when you build things. Humans need these things to help them live. That is why engineering is so important. The challenge we had was that we had very little materials and some ran out. So we had limited amounts of materials and that made it more challenging. I chose this design because it had many layers which would help stop the sand, dirt, mud… My design wasn’t as successful as I imagined. If I had more time, and materials I would add more layers to clean the water even more.