Information is presented in five major divisions: the Atmosphere, Biosphere, Cryosphere, Geosphere, and Hydrosphere. Each sphere is further divided into general study topics, "hot" topics relating to popular applications and phenomena, images, and What-Why-Who-How segments. In addition, you can download current material such as weather maps, bioactivity maps, and earthquake maps, and then customize the maps by state and region. The software also includes three learning games, hundreds of images and movies, and worksheet activities in a pdf format. Note: The software can be run from the CD, but to use the Internet update function, some or all of the sphere modules must be installed.System RequirementsMac: PowerPC, OS 8.1 to OS X, 64MB RAM, up to 300MB hard drive space for optional installWindows: Pentium processor, Windows 95/98/NT/2000/XP, 64MB RAM, up to 300MB hard drive space for optional install
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