Why is clean water important? What can you do to help clean water? Objective Students will be able to: Explain how the components of soil can cleanse the water (both groundwater as well as rainwater.) Explain how the forest canopy provides cleansing for the rain as it filters down to the soil. Create a filter that can clean water of a majority of impurities given basic supplies. Write about their filter and the steps needed for creation of filter. Background Teacher will need to understand the tree canopy and how this filters rain and takes out many of the impurities that are in the rain due t Duration: 60 Minutes.