Astound your friends! Impress party guests! Annoy your relatives! This book contains 101 fascinating science puzzles. The answer to each problem explains a scientific principle in easy-to-understand terms, so not only are you solving puzzles, you are having fun while you learn! How Do You Make a Tornado in a Bottle? is filled with fascinating scientific and mathematical puzzles, all based on real-world principles. Learn why birds fly in formation, how to steer a rudderless boat and why the water levels of the Atlantic and Pacific oceans are not always the same.