An exploration of solids that describes states of matter, how materials conduct electricity and heat, chemical changes, separating mixtures, and solutions, and more. Includes related activities, a glossary, and resources.
Discusses the increasing need for energy in modern society, examines the problems caused by the use of fossil fuels, and looks at alternative energy sources.
Examines the many different parts of the space shuttle, looking at the orbiter, engines, tanks and boosters, the flight deck and living quarters, the payload bay, wheels, windows, and hatches, and other aspects of the shuttle.
Explores the phenomenon of black holes, explains why astronomers think they exist, what causes them, what they are like inside, and the search to find black holes in space.
Focuses on the ten most pivotal battles that have altered the course of human history. Includes eye-catching illustrations with high-interest content that are sure to entice reluctant readers while they learn about the unforgettable details of life-changing conflicts.
The giants of science and their life-changing discoveries are chronicled. While exploration may have been in pursuit of pure science, discoveries such as penicillin have saved millions of lives. Students will get an enthralling look at ten discoveries that have advanced our existence by leaps and bounds.
