Sally M. Walker

You know that magnets hold pictures on a refrigerator. But have you ever found a magnet's north pole? Or turned an ordinary paper clip into a magnet? Now you can! Explore magnetism with the fun experiments you'll find in this book. As part of the Searchlight Books collection, this series sheds light on a key science question―How Does Energy Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

What do a doorstop, a butter knife, and the front of a boat have in common? All of them are wedges! Wedges are simple machines. They help us to do jobs more easily. But don't take our word for it. Put wedges to the test with the fun experiments you'll find in this book. As part of the Searchlight Books collection, this series sheds light on a key science question―How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams...

"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 to explore space through clever haiku, accompanied by narrative explanations of wonders that are out of this world. Illustrator Matthew Trueman imagines the explosive Big Bang...

"It is November 13, 1909, and the coal miners of Cherry, Illinois, head to work with lunch pails in hand, just like any other day. By seven a.m., 484 of these men are underground, starting jobs that range from taking care of the mules that haul coal to operating cages that raise and lower workers and coal to chiseling out rocks and coal from the tunnels of the mine. With the electrical system broken, they're guided by kerosene torches-and come early...

Combining science with poetry, this collection of haiku extols the wonder of trees through poems that engage with every season and stage of the life cycle, from seed to photosynthesis. "From the giant tree ferns of the forests primeval to the hardy sycamores of today's urban forests, experience the essence of trees through poems that engage with every season and stage of the life cycle, from seed to photosynthesis. A broad exploration of a majestic...

Eight-year-old Letty attempts to save her pet goose from marauding British soldiers in New Jersey during the Revolutionary War.

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

Henry Brown copes with slavery by singing, but after his wife and children are sold away he is left with only his freedom song, which gives him strength when friends put him in a box and mail him to a free state.

Describes volcanoes, where they form, the kinds of lava and landforms they create, and how volcanologists are learning to predict eruptions.

Using everyday examples, presents an introduction to wheels, gears and axles and shows how they are applied to make work more efficient.