Traces the history of hydroelectric energy, exploring how people have used rushing water as a source of power for centuries and explaining how it can be used as a safer, more environmentally-friendly form of energy in the twenty-first century.
Explores how geothermal energy may be used in the future to provide the world with an alternate source of energy that is both renewable and better for the environment.
A biography of American football running back Chris Johnson, discussing his early life, career with the Tennessee Titans, and personal accomplishments.
Introduces the basic laws of motion. Discusses how the laws are used in baseball and amusement park rides while also profiling the scientists behind the laws.
Presents profiles of sixteen significant people who influenced, caused, or reacted to the Salem witch trials of 1692 during which hundreds of men and women were jailed after being accused of witchcraft, and over twenty lost their lives.
Profiles people who led the civil rights movement in the United States, including Rosa Parks, Asa Philip Randolph, Ida B. Wells-Barnett, and Booker T. Washington.
