Two volumes from Salem's series, Earth Science, Earth Materials & Resources is an encyclopaedic review of the material world in which we live and the uses to which those materials can be put. And the full content of the set is available online, free. Everything from gold to hazardous waste is described and put in the context of humans' life on earth. Water, soil, minerals, radioactive substances, oil and gas, and an array of substances present on earth and mined from it are described in depth. In every case, the science behind the use of the resource is examined in full. Designed to meet the...

Two volumes from Salem's series, Earth Science, Earth's Weather, Water & Atmosphere is a brilliant exploration of the fluids on the surface of the earth and the gases that surround us. And the full content of the set is available online, free. The interaction among these key elements of the Earth's nature is fantastically complex and intriguing. The work explores the evolution of these interactions during the earth's history, theories regarding the future of the atmosphere and oceans and specific causes and effects that are at work. Designed to meet the needs of students in Earth science at...