Amazing mysteries of the world - Grace, Catherine O'Neill 1950- (Washington, D.C. National Geographic Society, 1983)
Accompanied by "Classroom activities" in portfolio (8 leaves : ill.), 2 games "Far-out-fun" and "Exploring the unknown" (2 fold. sheets)
discusses such mystifying phenomena as the auroras, black holes, and Bigfoot.
Keywords: Curiosities and wonders; Curiosities and wonders -- Juvenile literature