Christine Taylor-Butler

Simple text and photographs present information about the dwarf planet Pluto.

Learn all about amphibians.

Explains the functions and parts of the digestive system.

Introduces water's uses and locations with a text using two blended consonants that retain their individual sounds.

Provides an online resource describing the creation and ratification of the Bill of Rights, explains what rights are, and discusses the rights it guarantees, such as freedom of speech. Contains a related video, images, Web links, and text.

Explains what hydrology is, shows the impact of water on human history, and looks at water's role in climate, the water cycle, and the role of hydrology in the contemporary world.

Discusses diagrams, how famous thinkers such as Leonardo da Vinci and Isaac Newton used diagrams to explain their discoveries, and how diagrams are used in everyday life.

Discusses the circulatory system and ways to keep your heart healthy, and shows a map of blood's route around the body.

Describes the history of the United States Supreme Court, including notable justices and cases.

Describes the requirements and duties of the President of the United States as well as notable presidents throughout American history.