This book of can?t-believe-your-eyes illusions aren?t impossible, they just look that way. The Book of Impossible Objects comes with all the plastic pieces, paper parts, and special pages you need to experience 25 impossible activities that look like magic, but are really science. From the mind-bending Möbius strip (a band of paper with only one side) to cardboard acrobats with amazing balance to the wacky wobblestone, the projects in this science kit will leave you, and your friends, boggled . . . until we explain the science behind each one. Comes with: 48 page book, wobblestone, hinged mirror, plastic animation sheet, a variety of custom-designed cardstock curiosities.