Introduces the planet Mars, exploring its atmosphere, composition, and other characteristics and looking particularly at how humans learned about the only planet that can be seen clearly from Earth.

Describes the life of a hammerhead shark.

Explores the science of seasons, focusing on winter, discussing freezing and melting, the causes of cold weather, life in winter, and other topics; and includes a glossary, references, an index, and photographs.

Explores the science of seasons, focusing on spring, discussing signs of spring, the changes that occur, spring planting, and other topics; and includes a glossary, references, an index, and photographs.

Introduces magnets, their uses and how they work.

Introduces the planet Neptune, exploring its atmosphere, composition, and other characteristics and looking particularly at how humans learned about the gas giant that is four times the size of Earth.

Simply describes the functioning of the digestive system and explains the process of digestion.

Explores the science of seasons, focusing on fall, discussing the signs of fall, fall colors, harvest, and other topics; and includes a glossary, references, an index, and photographs.

Introduces the sun, exploring its atmosphere, composition, and other characteristics and looking particularly at how humans learned about the star at the center of our solar system.