What Makes a Shadow Author:Clyde Robert Bulla PreSchool-Grade 2- Simple introduction to shadows. Each page offers a short description of an object and its shadow ("A house has a shadow. The sun shines on one side of the house. There is a shadow on the other side"). Experiments are suggested to show various sizes and shades, and the concept of night is explained. 1972 Reprint of c1962 book.