Readers will love creating their own optical illusions. This clearly written, amply illustrated volume begins by describing physiological and cognitive optical illusions and provides examples of each, including the ambiguous “is it a vase or two faces” image and paradoxical 3D figures. The book then gives detailed instructions for four different projects, including explanations of the scientific principles at play. For instance, directions for creating a magic color spinner teach students about light frequencies and the color wheel. Lists of relevant vocabulary and the materials needed for each project add to the title’s usability. Math terms and definitions, a glossary, a link to publisher-provided Web sites, and an index round out the back matter.
Scholastic Reading Counts