The Earth's oceans are home to a diverse array of life, from large marine mammals to microscopic organisms. Among the most important are the marine phytoplankton, which comprise the basis of marine food webs, and also produce a large percentage of the Earth's oxygen through photosynthesis. Although the vast majority of phytoplankton are essential…

Students must clearly understand that every living thing on earth exists within the context of a system of interlocking dependency. Through the use of audio-visual materials, books, magazines, newspapers, and special television reports, as well as direct interaction with people, places, and things, students begin to develop a cognitive frame of…

The purpose of this 7-12 curriculum is to provide teachers and other educators with classroom lessons and home surveys that are a starting point for understanding five significant environmental issues - water, toxics, energy, transportation, and solid waste/recycling. While each of these environmental issues is complex and has far-reaching…