Vibrations, signals, and effects of sound are explained in simple text and matching art.

Discover what's for dinner in the food chains and webs in each environment.

Highlights what makes September special, including when it is, and what holidays it has.

A guide to "green" gardening for children that explains how to prepare soil without chemicals.

Highlights what makes July special, including when it is, and what holidays it has.

Highlights what makes April special, including when it is, and what holidays it has.

Outlines the characteristics of rain and examines how this type of weather forms.

Explores the plants and animals that live in the grasslands, the adaptations each plant and animal makes, and how the flow of energy creates the food chain links.

Traces the history of Memorial Day, a day set aside to honor U.S. soliders who have died while serving in the military, and looks at Memorial Day symbols and observances.

Exclamation Point, Question Mark, and Period invite all the punctuation marks to a Punk-tuation Celebration; but when the letters arrive, chaos begins.