Lance Dragon explains how simple machines work while using them to defend the skate park in his castle.

Curious Pearl and her brother don't like chores. They'd rather play with their kitten. But Dad looks serious, so Pearl and her brother come up with a solution.

Inquire, investigate, integrate . . . and inspire! In this book, Kaye Hagler presents thematic units that touch on core content in science with a common thread

Uses a story format to demonstrate the principles of the scientific method. Suggested level: primary.

Read and find out about six simple machines—the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw—in this colorfully illustrated non