Walker, Sally M

Provides a detailed account of the 1865 sinking of the steamboat Sultana on the Mississippi River, a preventable disaster that was fueled by greed and haste, and which left more than 1,500 dead.

Provides an account of the disaster that occurred on December 6, 1917, when two ships carrying munitions and relief supplies to Europe collided, causing an explosion that leveled the towns of Halifax and Dartmouth and resulted in the deaths of nearly two thousand people.

Reports on the work of forensic scientists who are excavating grave sites in James Fort, in Jamestown, Virginia, to understand who lived in the Chesapeake Bay area in the 1600s and 1700s; and uncovers the lives of a teenage boy, a ship's captain, a colonial officer, an African slave girl, and others.

"The story of the near-extinction and recovery of the American Chestnut tree"--Provided by publisher.

Describes work, machines, gravity, friction, and pulleys in everyday surroundings, and presents experiments that explain how they work.

Looks at the disaster of the sinking of the "Sultana," a steamboat that sunk after its boilers exploded while transporting Confederate prisoners of war home in 1865, claiming the lives of more than 1,500 soldiers.

"When Harry Colebourn saw a baby bear at a train station, he knew he could care for it. Harry was a veterinarian. But he was also a soldier in training during World War I. Harry named the bear Winnie, short for Winnipeg, his company's home town, and he brought her along to the military camp in England. Winnie followed Harry everywhere and slept under his cot every night. Before long, she became the regiment's much-loved mascot. But who could care for the bear when Harry went to battle? Harry found just the right place for Winnie--the London Zoo. There a boy named Christopher Robin played with Winnie--he could care for this bear too!"--Provided by publisher.

Provides a history of the Mason-Dixon Line, the boundary between Maryland and Pennsylvania surveyed by Charles Mason and Jeremiah Dixon, discussing the property disputes, family feuds, and exploration associated with it.