In this book, the authors describe the long journey from formless inanimate matter to man, explaining the nature and the logic of the physical-chemical processes involved. It stresses the limitations of reductionism analyses of these processes as complexity increases and novel properties emerge. And, in particular, the authors develop the idea that it was chemical change of the environment that allowed evolution of life to occur and that this evolution required successive addition of new message systems and information codes connected, compatible, and cooperative with previous extant systems. In doing so, the authors analyze the relationship between chemical element content and speciation both in inanimate and living systems in terms of fundamental units and variables or composite (derived) units and variables. Through such analysis, the authors conclude that chemical speciation is very much a matter of chemical cooperation (order versus disorder) while biological speciation requires cooperative flow of chemicals and energy (organization versus disorder). They argue that chance mutations of DNA are far too simple to provide a basis for evolution and biological diversity, though it is a representation of such diversity. It is the survival strength of systems of molecular machinery which separate and generate living species. In the final chapter, they analyze the effect of man's activities on the present global and local ecosystems and speculate on the possible nature of the emergent properties to be expected from an ever-increasing complexity of information based modern societies.

"Context-based science education has led to the transformation of science education in countries all over the world, with changes also visible in learning environments and how these are being shaped. These changes involve authentic problems on research and design, new types of interactions within communities of practice, new content areas and also new challenges for teachers in teaching, motivating, scaffolding and assessing their students, among other things.This book focuses on context-based science education and its resulting changes in the perspective of research on learning environments. It also focuses on the implications for the teachers and the professional development of their competencies and beliefs.The book consists of eleven chapters by experts in various themes surrounding learning environments research and science education, preceded by and concluded with a chapter with reflections on context-based learning environments in science by the editors of this book. The conclusion they draw is that professional development of science teachers may be the most important and the most difficult part of the process of teachers creating context-based learning environments in science, as is the focus in the title of this book."

Reflecting a rich technical and interdisciplinary exchange of ideas, Water and Life: The Unique Properties of H20 focuses on the properties of water and its interaction with life. The book develops a variety of approaches that help to illuminate ways in which to address deeper questions with respect to the nature of the universe and our place withi

This textbook has been designed to meet the needs of B.Sc. Second Semester students of Chemistry as per the UGC Choice Based Credit System (CBCS). With its traditional approach to the subject, this textbook lucidly explains principles of chemistry. Important topics such as chemical energetics, chemical/ionic equilibrium, aromatic hydrocarbons, alkyl/aryl halides, alcohols, phenols, ethers, aldehydes and ketones are aptly discussed to give an overview of physical and organic chemistry. Laboratory work has also been included to help students achieve solid conceptual understanding and learn experimental procedures.