Abraham Lincoln
Michael Anderson
Baseball and Its Greatest Players
Biographies of the American Revolution
Biographies of the New World
Biographies of the New World Power
A Closer Look at Genes and Genetic Engineering
A Closer Look at Living Things
Earth and Its Moon
Electricity
Football and Its Greatest Players
Global Warming
Investigating Earth’s Oceans
Investigating Earth’s Weather
Investigating Minerals, Rocks, and Fossils
Investigating Plate Tectonics, Earthquakes, and Volcanoes
Investigating the Global Climate
Investigating the History of Earth
Light
The Nature of Planets, Dwarf Planets, and Space Objects
Plant Reproduction, Growth, and Ecology
The Politics of Saving the Environment
Ronald Reagan
The Sun, Stars, and Galaxies
Thomas Jefferson