"Murry Bear has so many worries! Luckily, his sister, Molly, knows just what to do. "Sharing worries always makes them feel smaller," she says. She also tells him about her worry box. "When I'm worried about something," she says, "I write it down, then put it inside." Then Molly offers to help make one for Murray, and he takes it on their journey to the waterfall -- but will it really help?"--Back cover

"During the winter, the arctic fox begins an incredible journey. She heads north through the tundra, toward the top of the world. No larger than a house cat, she faces treacherous obstacles, frightening predators, and bitter cold along the way. It seems impossible that she could persist against the elements on her almost 2,000-mile journey--but she does."--Amazon.com.

Uses observations of bean seeds planted in eggshells to demonstrate the growth of seeds into plants.

This introduction to pandemics and their history shows readers how to stay safe, and also includes a glossary, an infographic on how the coronavirus spreads, a handwashing diagram and a timeline showing the pandemics of the past.

Read and find out about one of nature's most mysterious forces-the earthquake. Some earthquakes are so small that you don't even feel them, while others can make even big buildings shake! Learn why earthquakes happen, where they are most likely to occur, and what to do if one happens near you.

Help readers understand the observations of the sun and the moon, and includes directions on the most proficient method to keep a perception log.

Explains how fossils are formed and what they tell us about the past.

In simple text, presents the three states of matter, solid, liquid, and gas, and describes their attributes.

What is a baby butterfly called? How many kinds of butterflies are there? Young readers will discover these facts and more in Butterflies, an Exploring Life Cycles book.

"How does a magnet work? Why does a magnet pick up a paper clip but not a leaf or a penny? How can the whole world be a magnet? Read and find out more about how magnets work! Franklyn M. Branley's classic text is seamlessly updated by NCTE Orbis Pictus Award Honoree Carolyn Cinami DeCristofano in this reissue. Now rebranded with a new cover look, this book features rich vocabulary, fascinating sidebars and diagrams by artist True Kelley, and a find-out-more...