Introduces readers to the principles of motion and the letter "m" through a story in which Mary Motion helps her friends win a marble race. Includes two related experiments.
Introduces readers to the concept of light and the letter "l" through a story in which Lindy Light helps Lucy Lion understand her shadow. Includes two related experiments.
A collection of historical biographies highlighting the lives and experiences of ordinary men and women who made significant contributions to life in the Middle Ages.
