Books By Helene Hovanec   Around The World in 80 Puzzles   Barnyard Puzzles and Games   Brainstormers, Volume 2   Brainteasers For Young Einsteins   Christmas Puzzles   Crisscross Puzzles For Kids   Dinosaur Puzzles   Funny Animal Puzzles   Funtime Family Puzzles, Volume 1   Funtime Family Puzzles, Volume 2   Halloween Puzzles   More Outrageous Crosswords and Word Games For Kids   My First Puzzles: Easy First Puzzles   My First Puzzles: Fun With Words   My First Puzzles: I Can Read Puzzles   My First Puzzles: Letter Fun   My First Puzzles: Letter Games   My First Puzzles: Letter Play   My First Puzzles: Reading Fun   My First Puzzles: Reading Games   My First Puzzles: Word Games   My First Puzzles: Word Play   Outrageous Word Game and Crossword Puzzle Book For Kids   Riddle Ripoffs   Science Puzzles for Young Einsteins   Stopwatch Puzzles   The 21-Foot-Long Brainteaser Book: Fold-Out Fun for More Than One!   The Great Outdoors Games & Puzzles   The Incredible Science Puzzle Challenge   Tough Trivia For Kids   Who Wants To Be A Millionaire: Kids' Edition CD-ROM   Word Search Puzzles for Young Einsteins More Children's Puzzle Books   Amazing Crosswords for Kids   Fantastic Word Search Puzzles for Kids   Fantastically Fun Crosswords for Kids   Maze Madness: Brain-Tingling Mazes   Maze Madness: Super Fun Mazes   Maze Madness: Truly Tricky Mazes   The Big Book of Sudoku Puzzles for Kids   The Everything Kids' Cars And Trucks Puzzle Book   The Everything Kids' Princess Puzzle Book Puzzle Books for Grown-Ups   A Puzzler's Delight: Crosswords, Crostics, Trivia, and More   Aha!   Coffee Time   Complete Idiot's Guide to Crossword Puzzles and Word Games   Crossworld: One Man's Journey into America's Crossword Obsession   Cruciverbalism   Gridlock: Crossword Puzzles and the Mad Geniuses Who Create Them   Punchline Puzzles   Puzzlemaster Deck: 75 Word Riddles   Sit & Solve Crisscross Puzzles   Sudoku by Will Shortz: 2007 Day-to-Day Calendar   The New York Sun Crosswords #10   The New York Times Daily Crossword Puzzles Vol. 72   The New York Times Fast and Easy Crossword Puzzles   The New Yorker Book of Cartoon Puzzles and Games   Wordplay: The Official Companion Book   Sit & Solve Travel Battleship Puzzles

The Incredible Science Puzzle Challenge Helene Hovanec Stop the mad scientist from destroying the world by solving science-based puzzles. Wacky fun! For 8- to 12-year-olds.