National Standards for Grades 6-12
 
Learn about the water cycle, water treatment, and how the Earth filters groundwater. Students design a filtration system, select filtering materials, build a filter, test filtration effectiveness, and compare the success of their design to those of others. Students also build a solar powered still for purifying or desalinating water. A great accompaniment for studying human effects on the environment, water purification, or designing water filtration systems for third world countries.
 
For modeling water filtration only, order Kemtec #9-303, Ground Water Models Class Kit.