Rebecca Stefoff

This title explores and explains how the Panama Canal was built. The canal's construction is described in terms of the engineering process. The book explores why the canal was built and describes the design stages and technologies used during construction. The book also describes the challenges builders faced while building the canal.

We say that the sun "rises" in the morning and "sets" at night, but is it really moving? Readers will learn about the long, sometimes dangerous struggle to discover whether the sun revolves around Earth, or Earth around the sun, and find out what scientists now know about our planet's place in the universe.

Explains how and why grammar has evolved through the years, and where it is likely to go. Writing prompts engage and challenge the young reader. Meets Common Core standards for Literature.

Can animals feel empathy or have a consciousness? Through the extensive work from ethologists like Charles Darwin and Jane Goodall, it is widely thought that some animals do feel empathy. Research is ongoing, however, dogs, birds, elephants, rodents, and dolphins are thought to all have a moral compass. In what ways do these animal species show empathy or feeling? Through explanative based text by award-winning author Rebecca Stefoff, your readers...

Through centuries of storytelling, giants have evolved into monstrous fairy tale creatures with unique powers. This book explores many stories about giants and discusses their place in history as well as in today's society.

Alchemy is an idea based on superstition and philosophical global traditions spanning hundreds of years. Alchemists made medicines and pharmaceuticals from the earth's materials and purified objects through philosophy, magic, and spirituality. Chemistry is based on the material principles of mixed bodies, and spans all natural or physical sciences in its practices. This book on alchemy and chemistry shows the scientific method at work, proves, and...

The Erie Canal was mocked as a big ditch when it was started, but by the time it was completed in 1825, it was called an engineering marvel. Readers learn how engineers overcame a rise in elevation of 568 feet between the Hudson River and Lake Erie with locks and aqueducts to create a waterway that changed America.

Magic is an art form that effects events by using mysterious or supernatural forces. Much of magic is rooted in tricking the viewer to look elsewhere while the effect, or trick, is performed. Medicine is rooted in science and is the practice of diagnosis, treatment and prevention of disease. This book on magic and medicine shows the scientific method at work. It explores a branch of modern science or a major scientific milestone, comparing and contrasting...

How do you know you are getting the best deal in town? Sharpen your consumer smarts with Smart Spending. Curriculum Connections: - Shows how math can be used in real-world situations - Provides multistep word problems with the four basic functions - Compares and contrasts differences between needs and wants - Meets the national standards for fourth grade personal finance education.

Discusses the main concerns of the environmental movement in the 1960s, and how those have evolved since; what's changed for the better, what might be worse, and where do we go from here.