Manyebook

Grover's 10 Terrific Ways to Help Our Wonderful World

Illus. in full color. A jam-packed amalgam of puzzles, experiments, optical

illusions, secret codes, and more are clearly explained in this brain-boggling

activity book. Every puzzle, trick, and project can be executed with safe,

inexpensive materials found around the home and the lively step-by-step

instructions make each activity easy to follow.

  • Format
  • paperback
  • Pages
  • 1
  • Language
  • english
  • ISBN
  • 9780679813842
  • Genres
  • childrens
  • Release date
  • 1992