Water Filtration in Nature

Josh·

Environmental Science

Preview

At a Glance

Grade Level5th Grade

SubjectEnvironmental Science

Original Prompt

How does the ground filter out pollutants for our water? How does clean water get into a well? Do clouds filter and clean water?

This resource focuses on the important role that soil and groundwater systems play in filtering and cleaning water through natural processes. Students will learn how soil layers operate as a filter, explaining how rainwater, which may contain pollutants, is purified as it percolates through various soil layers. The process describes how large particles are trapped by topsoil, while smaller gaps catch tiny pollutants. The filtered water moves into underground reservoirs known as groundwater, which we often draw upon for drinking water from wells. The document also covers the water cycle, including the processes of infiltration, evaporation, and condensation, illustrating how these cycles interact to maintain clean water supplies.