Harris, Nancy

An introduction to the color red, featuring photographs and text that compare plants, animals, rocks, and soils that are and are not red.

An introduction to the color orange, featuring photographs and text that compare plants, animals, rocks, and soils that are and are not orange.

An introduction to the color green, featuring photographs and text that compare plants, animals, rocks, and grasses that are and are not green.

An introduction to the color brown, featuring photographs and text that compare plants, animals, rocks, and soils that are and are not brown.

Presents a collection of essays that examine the drug, opiates, including information on its medical history, cultural impact, and use and abuse in experimentation.

Presents a collection of twenty-two essays dealing with the value of space exploration and includes topics on early space flight and technology, the formation of NASA and significance of the Apollo program, the Mir Space Station and the Challenger disaster, and more.

Presents twenty-one essays on the controversial subject of cloning and discusses its history and early experiments in cloning, the issues over human cloning, and future cloning developments.

Simple text and photographs provide an introduction to colors, comparing colors found in nature on such things as animals, plants, and rocks.

An introduction to the executive branch of the United States government that discusses the duties of the president and vice president, how one is elected into office, and the relationships between the White House and the legislative and judicial branches.

Contains eleven essays in which the authors examine the science and study of volcanoes, look at specific incidents of volcanoes, and discusses methods for averting disaster.