Four comprehensive overview CD's, each with nearly all the content of hte sets of 3 Discover! CDs. Lacks the Video Documentaries and one narrated test level in the Main Chapters.
Dynamic Earth from EOA Scientific Systems
A look at the Earth as a dynamic system in action. Earth’s formation, shape, size, motions, internal structure and magnetic field. Geological history and time scales. The changing geosphere. Plate tectonics and continental drift - plus earthquakes and volcanoes!
Volume 2: Minerals, Rocks and Resources from EOA Scientific Systems
A look at Earth's raw materials and how they are cycled and recycled. Minerals and crystal structure. Atomic bonding. The three main rock groups: igneous, metamorphic and sedimentary. Rock formations and the rock cycle. Renewable and non-renewable resources.
Carving the Earth: Soils, Erosion and Landforms from EOA Scientific Systems
Earth's surface is always changing. This CD looks at erosion in all its forms-from wind, water and ice to plate tectonics. Folds, faults and impact structures. How soil is formed and how it varies with climate and latitude. How small and large forces act over time to change the Earth's face.