A bit of arithmetic, geometry, and physics. Problems, paradoxes, games

Is there a place on Earth where the northern end of a compass needle points south? Why can a water pipe burst from frost? Which is heavier - a box with one large iron ball or one with small balls... made of the same material? Does the fate of an emperor depend on the date of his birth?In this book, you will find these and many other intriguing questions from various fields of science: physics, geometry, geography, and even meteorology. By answering them, your child will expand knowledge in these areas, develop ingenuity, and have fun - the publication also includes exciting experiments, puzzles, and tricks.The book is written in an accessible language, and at the end of each section, there are answers and explanatory comments on difficult moments. The publication will appeal to both children and parents who engage with them independently.