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- Martial arts, by Bob Knotts
- The U.S. Navy in World War II, by Peter Benoit
- Golf, by Christin Ditchfield
- Nitrogen, by Salvatore Tocci
- The superstorm hurricane Sandy, Josh Gregory
- Copper, by Salvatore Tocci
- Iron, by Salvatore Tocci
- Conservation, by Christine Petersen
- Leopards, by Ann O. Squire
- Gold, by Salvatore Tocci
- Experiments with plants, Salvatore Tocci
- Pigs, by Sara Swan Miller
- The ozone layer, by Rhonda Lucas Donald
- The Declaration of Independence, by Patricia Ryon Quiri
- Gymnastics, by Christin Ditchfield
- Acadia National Park, by Wende Fazio
- Cows, by Sara Swan Miller
- Caves, by Larry Dane Brimner
- Chickens, by Sara Swan Miller
- Yellowstone National Park, by David Petersen
- Experiments with magic, by Salvatore Tocci
- Everglades National Park, by Wende Fazio
- Experiments with magnets, by Salvatore Tocci
- D-Day, Peter Benoit
- Experiments with rocks and minerals, Salvatore Tocci
- The Summer Olympics, by Bob Knotts
- The Bill of Rights, by Patricia Ryon Quiri
- Llamas, by Emilie U. Lepthien
- Independence Day, by Nancy I. Sanders
- Antarctica, Mel Friedman
- Chaco Culture National Park, by David Petersen
- Piranhas, by Elaine Landau
- Bill and Melinda Gates, Josh Gregory
- Big Battles of World War II, Peter Benoit
- Alternative energy, by Christine Petersen
- Experiments with foods, Salvatore Tocci
- The Wampanoag, Kevin Cunningham and Peter Benoit
- Thunderstorms, by Paul P. and Diane M. Sipiera
- Badgers, by Joan Kalbacken
- Carbon, by Salvatore Tocci
- Baseball, by Mike Kennedy
- Hawaii Volcanoes National Park, by Sharlene and Ted Nelson
- Grand Canyon National Park, by David Petersen
- Tropical rain forests, by Darlene R. Stille
- Experiments with electricity, by Salvatore Tocci
- Experiments with the sun and the moon, by Salvatore Tocci
- Oxygen, by Salvatore Tocci
- The U.S. Army in World War II, by Peter Benoit
- The Weapons of World War II, Peter Benoit
- The periodic table, by Salvatore Tocci