Perform amazing feats of mathematical magic, answer clever riddles, and much more with this book and a handy pocket calculator. Scores of brain-teasers, puzzles, mathematical oddities, games and recreations to fill dozens of hours with fun and excitement. Answers to problems.
Science Experiments and Amusements for Children by Charles Vivian Seventy-three easy experiments — requiring only materials found at home or easily available, such as candles, coins, steel wool, etc. — illustrate basic phenomena like vacuum, simple chemical reactions, and more. All safe. Modern, well-planned.
Entertaining Science Experiments with Everyday Objects by Martin Gardner One hundred experiments delight children while teaching elements of astronomy, chemistry, mathematics, mechanics, geometry, more. Over 100 illustrations.
Sports Science for Young People by George Barr Does a curve ball really curve? Why does a golf ball have dimples? Find answers to these and hundreds of other questions in this entertaining discussion of the scientific principles underlying sports.
