"Water springs from the ground, creeks gurgle downhill, snow and rain make streams bigger, and then you have a river. But where does that river go? Step by step, Sally M. Walker's simple, scientifically accurate narration lets the youngest hydrologists follow water's movement fro...
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"Mighty mountains reach up high, until craggy cliffs tumble and boulders settle everywhere. But how do big, jagged rocks turn into the soft sand we love at the beach? Step by step, Sally M. Walker's simple, scientifically accurate narration lets the youngest geologists learn how ...
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.
"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 mi...
This book describes the process through which fossils are created, and what we can learn from them.
Readers learn about minerals, their properties, and their uses.
The members of the Vowel family have a hard time talking until their children, Alan, Ellen, Iris, Otto, and Ursula, are born, and when one of them gets lost one day, it takes their Aunt Cyndy to fix the problem.
"This stunning meeting of poetic form and luminous artwork transports us out of the bounds of Earth, past a lunar eclipse, beyond the orbiting planets, and into glowing galaxies and twinkling constellations. Sally M. Walker uses her award-winning skill as a writer of nonfiction t...
Discusses the mysterious disappearance of the Confederate submarine, the H.L. Hunley, and its recent recovery from deep in the waters off the coast of South Carolina.