An illustrated introduction for early readers to the basic concepts of gravity, and discusses early roller coaster technology, how coasters make it to the top, record-breaking coasters, and other topics.
Photographs and text describe the climate and wildlife of wetland areas, and focuses on the Great Dismal Swamp in Virginia and North Carolina, Okefenokee Swamp in Georgia and Florida, and the Florida Everglades.
An illustrated introduction for early readers to the basic concepts of light reflection and absorption, and defines what light is, discusses bending light, and includes instructions for a simple light experiment.
A simple introduction to the Battle of the Alamo that discusses causes of the conflict and significant individuals and events; and includes a time line, a glossary, and illustrations.
Explores the origins of Earth Day and examines how and why people use this day to teach others about the importance of caring for out planet. Includes tips on simple things readers can do to prevent pollution and environmental harm.
Introduces early readers to the social importance of laws, and discusses the U.S. Constitution, various types of laws, and how they affect individual citizens.
An illustrated introduction for early readers to the basic principles of energy, and describe what energy is, electricity, magnets, light, sound, chemical energy, and other topics.
An illustrated introduction to the lunar cycle for early readers, and discusses the moon's path, phases, how the moon affects tides, eclipses, and other topics.
