The Learning Web - K-12 earth science education, exploration, and life-long learning. From the U.S. Geological Survey. EOA Scientific Systems - Publishes multimedia earth, ocean, atmosphere, and space science educational software. Science educational resources include all new media formats, integrating CD-ROM, and up-to-date information through an Internet Campus Earth Balloon - Offering a K-12 school assembly programs featuring the Earth Balloon, an interactive environment through which students learn about the planet. Nebraska Earth Science Education Network - Collection of activities, lessons, data, workshops links and resources for educators and students interested in earth science activities (K-12) BRIDGE: Ocean Sciences Education Teacher Resource Center - Clearinghouse of K-12 marine science education sites available online. Earth Science Institute for Teachers - Details of a class that uses mineral science and mineral processing to enhance the teaching of science in middle and high schools. Digital Library for Earth System Education - Provides collections of educational resources, Earth data sets and imagery, support services and communication networks to improve the efficiency of teaching and learning about the Earth system at all levels. TeacherVision: Earth Science - Provides cross-curricular thematic unit of lesson plans and online supplemental resources for teaching earth science to K-12 students.