On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.

A parent lulls a child to sleep with visions of soft spring breezes, lazy summer days, cool autumn winds, and moon-lit winter nights.

Math is made fun with the help of some colorful birds.

An introduction to the lives of Lewis and Clark and to the exploratory expedition they led from St. Louis to the Pacific Ocean in the early nineteenth century.

Junior sleuth Jeffrey Bones and his grandfather enjoy a day at the amusement park until their tickets to ride the giant roller coaster mysteriously disappear.

Traces the life and achievements of the architect, bibliophile, president, and author of the Declaration of Independence.

Traces the life of the nineteenth-century English woman who followed her calling to work in hospitals and improve the conditions under which the sick were treated.

A brief biography of the African American scientist who overcame tremendous hardship to make unusual and important discoveries in the field of agriculture.

How does light work? Where does it come from? What is it made of? These are the questions answered in Light Waves, a kid-friendly introduction to the physics of light! Decorated team David A. Adler and Anna Raff, who received two stars from Publishers Weekly and Booklist for Things That Float and Things That Don't, are back to explain the basics of the electromagnetic spectrum, photon particles, light scattering, reflection and refraction, and solar...

A picture geometry book that introduces children to quadrilaterals, including parallelograms and trapezoids, using hands-on activities and simple explanations. --