Describes the various parts of the nervous system and explains how sensory messages are sent back and forth through nerves between the brain and the body.
An introduction to plants that provides information on the parts of plants, the things that make them grow, and the ways humans use them; and includes simple experiments to reinforce the scientific concepts presented.
Explains what a constitution is, discusses why the thirteen American colonies felt the need for a central government, introduces five framers of the U.S. Constitution, describes the convention at which the document was created, and considers the relevance of the Constitution in the modern world.
Describes the purpose and structure of the U.S Congress, explaining what representatives and senators do, discussing Congress's history, and touring the Capitol.
Presents an introduction to Saturn, the sixth planet from the Sun, in simple text with illustrations, including information on its size, matter, surface, and location.