A little arithmetic, geometry and physics. Perelma Ya.I.

Is there a place on the ground where the northern end of the compass arrows indicates the south? Why can a water pipe burst from frost? What is heavier - a box with one large iron ball or with small balls of the same material? Does the fate of the emperor depend on the date of his birth? The book contains these and many other curious questions from different fields of science: physics, geometry, geography, and even meteorology. Responding to them, your child will expand knowledge in these areas, and will develop quick wits and spend time fun - there is also exciting experiments, puzzles and tricks in the publication. The book is written in an accessible language, and at the end of each section, answers and explanatory comments on complex moments are collected. The publication will appeal to both children and parents who are engaged with them on their own.