Book excerpt: Every child who performs these 50 fabulous feats will feel like a magician--but the magic here is really science at play. Every trick in the book has a sound, easy-to-understand scientific explanation that will stimulate kids’ understanding of basic concepts. Even as they’re having fun, children will wow the crowd by poking a skewer through a balloon without making it pop, or balancing a penny on a coat hanger. Nothing’s cooler than watching a real egg get sucked into a glass bottle, picking up ice without even touching it, or whipping up fizzy and colorful solutions that any mad scientist would prize. Wild optical illusions will boggle the mind and astound the eye.