Jerome, Kate Boehm

Looks at how scientists use math as a tool to understand data, identifies systems used to make measurements, and describes situations in which using estimates is most practical.

Examines how scientists use number sense to find answers, explains how benchmarks are helpful, describes situations in which mental math can help, and shows how to judge the reasonableness of answers to everyday problems involving math.

Examines events surrounding the mysterious sinking of the Confederate submarine, the "H.L. Hunley," and discusses the vessel's 1995 recovery from the waters off the coast of South Carolina.

Examines the life of Amelia Earhart,a pioneer female aviator who mysteriously disappeared during an around-the-world flight in 1937.

Traces the research that led to the discovery of radioactivity and profiles the lives and works of key scientists who were involved in that research.