Pre-recorded computer software and manuals sold as a unit for use in teaching and providing information regarding science, physics, optics, holography, astronomy, earth and planetary sciences, plate tectonics, geology, hydrology, oceanography, meteorology, atmospheric sciences, climatology, environmental sciences, ecology, agricultural sciences, botany, zoology, taxonomy, cladistics, mathematics, chemistry, medicine, dentistry, biology, biochemistry, bacteriology, microbiology, life sciences,...