"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. They build a contraption to help them with their chores. As they build, Pearl teaches her brother all about simple machines. Free bonus video content through the Capstone 4D augmented reality app enhances the science experience."-- Provided by publisher.

"Picture Window Books are published by Capstone."