Heather C Hudak

A virus is a type of germ so small that it can only be seen with a microscope. Viruses were discovered in the late 1880s. Discover more in What Is a Virus?, part of the Understanding Viruses series.

We cannot prevent volcanic eruptions, but we can try to minimize their impact on humans. This interesting book examines what scientists know about eruptions, whether we can predict them, and how we learn from each one. By studying the destruction they cause, scientists and engineers continue to come up with new and improved technologies to predict volcanic eruptions and make cities, buildings, and people safer. Case studies and brief bios of key scientists...

Why do gorilla troops move to a new area each day? Why do bonobos sleep in large groups? How do animals in a troop help raise young? Discover the answers in this amazing book and learn about the many ways living in a troop helps animals survive. Free downloadable Teacher's Guide.

Who wants to produce podcasts? In this title, prospective podcast producers will meet pioneers in the podcasting field, examine the history of podcasting, and learn about what podcasting entails, the tools used to create podcasts, and trends in the podcast industry. Table of contents, infographics, timeline, fun facts, a glossary, and an index are included. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is...

Martinez longs for the happy, stable home he had in Guatemala - before gang violence forced them to flee to Mexico. And now, he is being uprooted again. His mother has decided they must return to Guatemala to take care of the extended family. Martinez is scared to return - but the love of his family and support of his new rural community in Guatemala gives him hope for a future without violence. Paired with facts about the instability in Guatemala...

Martinez's life in Guatemala is turned upside down when gangs harm and threaten the people in his neighborhood. He must leave his friends and two dogs behind when he and his family are smuggled to a refugee camp in Mexico, where thousands of families escaping violence hope to find safety. Interspersed with facts about Guatemala and its people, this narrative tells a story common to many refugees fleeing the country. Readers will learn about gangs...

Most people today have cell phones. People rely on cell phones for communication. Cell phones also store a lot of personal data. Cell Phone Privacy explores how people can protect this data. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards....

Climb Aboard! Explore how the sun was formed! Investigate spots, flares, and solar wind! Meet early astronomers working to understand the sun! Examine the sun, the moon, Earth, and gravity! Learn about solar observatories! See an infographic showing the sun's layers! Did You Know? fact boxes and a Guidebook of facts about the sun complete your journey. Aligned to Common Core standards and correlated to state standards. Checkerboard Library is an imprint...

Who wants to be an app developer? In this title, prospective app developers will meet pioneers in the app development field, examine the history of app development, learn what app developers do, the software they use, where they work, and mobile devices' effects on the industry. Table of contents, infographics, timeline, fun facts, a glossary, and an index are included. Aligned to Common Core Standards and correlated to state standards.

In this title, unwrap the life of Chick-fil-A founder S. Truett Cathy! Readers will follow Cathy's journey from his entrepreneurial childhood to his first restaurants to his work perfecting the chicken-cooking process that led to Chick-fil-A. Learn about Cathy's tenets for success, the company's commitment to giving back, and the cows! A helpful timeline, a glossary, and an index supplement historical and color photos. Aligned to Common Core Standards...