But what causes them? Why is there winter in the Southern Hemisphere at the same time there is summer in the Northern Hemisphere? In summertime, why is it still light out in the evening? With simple language appropriate for young readers, non-fiction master Gail Gibbons introduces young readers to the four seasons and explains why they change throughout the year.Clear, simple diagrams of the earth's orbit are labeled with important vocabulary, explained and reinforced with accessible explanations. The Reasons for Seasons introduces the solstices, the equinoxes, and the tilt in Earth's axis that causes them, and gives examples of what each season is like across the globe from pole to pole.Fascinating and easy to understand, this is a perfect introduction to seasons, earth's orbit, and axial tilt. Different effects on different parts of the world are included, illustrating the difference in climate between the equator, the northern and southern hemispheres, and the polar regions.

    You can also find out what happens to water after it travels through a tree's roots, branches, and leaves, and how to figure out a tree's age.Clyde Robert Bulla's simple and concise text and Stacey Schuett's lush illustrations follow a tree's continuous life cycle through spring, summer, winter, and fall.

    This informative concept book includes detailed pictures of leaves in different sizes, shapes, and colors and a list of activities that kids can do with leaves.This is a Stage 2 Let's-Read-and-Find-Out, which means the book explores more challenging concepts for children in the primary grades. Let's-Read-And-Find-Out is the winner of the American Association for the Advancement of Science/Subaru Science Books & Films Prize for Outstanding Science Series.Supports the Common Core Learning Standards and Next Generation Science Standards

    Butterflies can't survive cold weather, so when winter comes, many butterflies fly to warmer places. They migrate. Woodchucks don't like cold weather either but they don't migrate; they hibernate. Woodchucks sleep in their dens all winter long. Read and find out how other animals cope with winter's worst weather. This is a Level One Let’s-Read-and-Find-Out Science title, which means the book explores more challenging concepts for children in the primary grades and supports the Common Core Learning Standards, Next Generation Science Standards, and the Science, Technology, Engineering, and Math (STEM) standards. Let’s-Read-and-Find-Out is the winner of the American Association for the Advancement of Science/Subaru Science Books & Films Prize for Outstanding Science Series.

    But under the snow exists a secret kingdom of squirrels and snow hares, bears and bullfrogs, and many other animals that live through the winter safe and warm, awake and busy, under the snow. Discover the wonder and activity that lies beneath winter's snowy landscape in this magical book.

    The camera stops the action and magnifies it so that all the amazing states of water can be observed - water as ice, rainbow, stream, frost, dew. Readers can examine a drop of water as it falls from a faucet, see a drop of water as it splashes on a hard surface, count the points of an actual snowflake, and contemplate how drops of water form clouds.

    Soon, it disappears into a hard shell called a chrysalis. Where did it go? This is a perfect beginner's guide to the mystery of metamorphosis.Named as a NSTA/CBC Outstanding Science Trade Books for Children, this book explains the life cycle from caterpillar to butterfly with easy-to-follow prose from Deborah Heiligman and warm, colorful illustrations from Bari Weissman.This is a Stage 1 Let's-Read-and-Find-Out, which means the book explains simple science concepts for preschoolers and kindergarteners. Let's-Read-And-Find-Out is the winner of the American Association for the Advancement of Science/Subaru Science Books & Films Prize for Outstanding Science Series.Supports the Common Core Learning Standards and Next Generation Science Standards

    Written and illustrated in Seussian style, this a great addition to the Cat in the Hat’s Learning Library!

    A publishing event!"If you decide to go to the moon," writes Faith McNulty, "read this book first. It will tell you how to get there and what to do after you land. The most important part tells you how to get home.Written in the second person, the text allows the reader to participate in every aspect of the journey, from packing ("don't forget your diary and plenty of food") to liftoff (at first you'll feel heavy; don't worry") to traveling through space (where "the moon glows like a pearl in the black, black sky"). The reader lands at the Sea of Tranquility, the site of the first lunar landing.

    (That's why it's been Employee of the Month for 4.5 billion years.) So why does the Sun get to be the center of attention? Because it's our solar system's very own star! This funny and factual picture book from Awkward Yeti creator Nick Seluk explains every part of the Sun's big job: keeping our solar system together, giving Earth day and night, keeping us warm, and more. In fact, the Sun does so much for us that we wouldn't be alive without it. That's kind of a big deal. Each spread features bite-sized text and comic-style art with sidebars sprinkled throughout. Anthropomorphized planets (and Pluto) chime in with commentary as readers learn about the Sun. For instance, Mars found someone's rover. Earth wants the Sun to do more stuff for it. And Jupiter just wants the Sun's autograph. Funny, smart, and accessible, The Sun Is Kind of a Big Deal is a must-have!

    Perfect for reading on winter days, the book features photos of real snow crystals in their beautiful diversity. Snowflake-catching instructions are also included.

    It's a math class you'll never forget.This classic picture book is an ALA Notable Book, a Reading Rainbow Feature Selection, and a Boston Globe/Horn Book Honor Book for Illustration.The repackage of this fun look at math concepts includes a letter from the author that features several ways for children to find a million everyday things.

    Readers learn how to identify all sorts of leaves by their color, shape, and other characteristics. A great choice for science units and autumn displays. Full color.

    Water can be a Thirst quencher Kid drencher Cloud fluffer Fire snuffer Find out about the many roles water plays in this poetic exploration of water throughout the year.

    If you had a beaver's, you'd have orange teeth! And if you had a naked mole rat's set of teeth, you could move each one separately, like chopsticks! The animal kingdom has lots of cool teeth, but yours are pretty awesome, too!