For Teachers Drinking Water & Groundwater Lesson Plans (several) The Water Source Books (free downloads, over 300 activities) Groundwater - An Aquifer Model Groundwater - Free Presentations in PowerPoint format for K-12 Science  See Also: Water Pollution, The Water Cycle For Kids Games & Kids Sites  Resources The Edwards Aquifer  Free Clip Art Free Presentations in PowerPoint format for K-12 Science  Video Clips for Science  All Rights Reserved    Clip Art Credit: Phillip Martin Have a great year!