Exciting experiments, nature observations, clever quizzes, optical illusions, picture connectors, messy mazes, clever crossword puzzles... all in the name of science!

This book is packed with activities of all kinds that will stretch your bright brain and enrich it with many new knowledge and skills. For each completed task, you get the number of points according to its difficulty. But if you don't know how to deal with a really difficult puzzle, don't despair! You will find the correct solutions at the end of the book.