Atmosphere, Hydrosphere, Lithosphere   For Teachers Atmosphere Learning the 3 Layers Lesson Plans for the Lithosphere, the Hydrosphere, and the Atmosphere  Hydrosphere lesson plan Spheres - Free Presentations in PowerPoint format for K-12 Science  For Kids Games & Kids Sites Resources The Earth's Spheres Introduction to the Hydrosphere 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!