power, food chemistry, and robots! These are just a few of the topics covered in this fantastic new science encyclopedia, which presents a comprehensive overview of physical and life sciences from A to Z. Super smart and kid-friendly, it's packed with full-color photographs, weird but true facts, amazing statistics, do-it-yourself experiments, plus profiles of scientists and National Geographic's explorers who rock the world of science. Keep up with the changes happening all around us with this stellar science reference book.