In this online interactive Civil War activity, students respond to 10 multiple choice questions about John Brown's Raid. Students may check their answers immediately.

In this online interactive Civil War activity, students respond to 15 multiple choice questions about the Battle of Chickamauga. Students may check their answers immediately

In this social studies worksheet, 5th graders answer multiple choice questions about World War II, the transcontinental railroad, slavery, and more. Students complete 25 questions.

Read about the invention, operation, and use of the Gatling gun in the Civil War. Includes a letter from Richard Gatling explaining why he invented such a weapon.

Focuses on the use of horses during battles in the Civil War and explains why they were the military's primary source of transportation. From "Fighting for Time" by Dee Brown.

Describes the weaponry used during the Civil War, and some of the innovative technology that the Union's military forces employed. These included the minie ball, rifles, underwater torpedoes, the use of hot air balloons, and improved...

This site explores the Cold War race to develop the hydrogen bomb, a weapon that would change the world. Content details all the people who were involved in the race for the H-Bomb, as well as notable events during this time period....