Sally M Walker

December 6, 1917 started like any other day in Halifax, Nova Scotia. But everything stopped shortly before 9 o'clock that morning when two ships collided in Halifax Harbour. One of the ships was loaded with munitions for the troops fighting in Europe; the other was preparing to collect medical supplies for the war's victims. The resulting disaster was the largest man-made explosion until the detonation of the atomic bomb in 1945. The blast flattened...

In the time when witches tiptoe about to have their Halloween fun, ancient Druscilla knows her creaking knees will prevent her from being sneaky and sets out to find a silent conveyance for herself, her cat, and her jack-o-lantern.

Sheets of rock lie beneath earth's soil and water. They are called the earth's crust which is made of minerals, a solid substance which is not alive. Much of the inside or earth is made of rock as well. Rocks may be as small as a grain of sand or as huge as mountains.

Describes the 1938 discovery of the coelacanth, a fish previously believed to be extinct, and subsequent research about it.

Describes the physical characteristics, life cycle, and behavior of sea horse as well as efforts to protect them.

Describes the life cycle of the opossum.

"Sibert Award winner Sally M. Walker crafts an engaging, middle-grade nonfiction narrative of the American Indian soldiers who bravely fought in the Civil War"-- Provided by publisher.

A collection of haiku poems celebrates the planet Earth, including such topics as rocks, earthquakes, fossils, volcanoes, and the water cycle.

The worst maritime disaster in American history wasn t the Titanic. It was the steamboat Sultana on the Mississippi River and it could have been prevented.