school exhibition project

Working water filter model school science project using sand gravel charcoal and cotton

Working Water Filter Model for School Project | Easy DIY Water Filtration Experiment (Grades 3–5)

ByGilkut

Discover an easy and educational Working Water Filter Model for school students. Learn how sand, gravel, and charcoal help clean dirty water in this fun DIY environmental science project perfect for Grades 3–5 science fairs and exhibitions.