how to make wastewater purification working model
Here’s how you can create a wastewater purification working model using cardboard pipes and paper cups to demonstrate different purification stages, such as gravel, coal, sand, and tissue paper filtration. Materials Required: Video Step-by-Step Construction: 1. Create the Frame Using the Cardboard Pipe 2. Prepare the Filtration Stages in Paper Cups You will need four … Read more