Vedas are considered as an ocean of knowledge. Every bit of Vedas is very important each stanza, each line, each word has a significant meaning to it. For the language also supports its purpose. It is said that Sanskrit is the only nearest language which could be used to explain or describe anything clearly and specifically. It is the only Vedic Dharma where religion and Science go in hand to hand. The Vedas contain in them the gems of all true sciences. The book Science in Veda deals with the combined approaches of modern science and ancient Vedic science. As we know that Indian Scriptures and Sanskrit literature is the storehouse of knowledge. As we go through this literature they have innumerable illustrations of Science, technology, arts, music, dance, environment, architecture, vehicles etc. The present book is an attempt to explore the knowledge of science, penetrate the mystery of the Vedas and to search out in them the various branches of Science. The book is divided into ten chapters describing the importance of water as described in our vedic literature.