All these amazing things happen because the earth is constantly in motion. Spinning and circling, gliding and tilting, as passengers of the earth, our voyage never ends!With poetic text and gorgeous illustrations, G. Brian Karas illuminates our earth and its cycles and does a brilliant job of making the concepts of rotation and revolution understandable to even the youngest readers.

    Travel with author-illustrator Thomas Locker and follow our planet's most precious resource--water--on its daily journey through our world.

    King Arthur was a good ruler, but now he needs a good ruler. What would you do if the neighboring kingdom were threatening war? Naturally, you'd call your strongest and bravest knights together to come up with a solution. But when your conference table causes more problems than the threat of your enemy, you need expert help. Enter Sir Cumference, his wife Lady Di of Ameter, and their son Radius. With the help of the carpenter, Geo of Metry, this sharp-minded team designs the perfect table conducive to discussing the perfect plan for peace. The first in Sir Cumference series, SIR CUMFERENCE AND THE FIRST ROUND TABLE makes math fun and accessible for everyone.

    A concise main text highlights how feathers are not just for flying. More curious readers are invited to explore informative sidebars, which underscore specific ways each bird uses its feathers for a variety of practical purposes. A scrapbook design showcases life-size feather illustrations.

    The book takes readers through the leaves’ initial change from green to red, yellow, and orange, the shedding of the leaves, and the leaves crumbling as winter approaches. Extensive back matter explains the science behind this process to the youngest of budding scientists.

    Frizzle, the strangest teacher in school, takes her class on a field trip to the waterworks, everyone ends up experiencing the water purification system from the inside.

    But water doesn't always look the same, it doesn't always feel the same, and it shows up in lots of different shapes. Water can be a lake, it can be steam, it can be a tear, or it can even be a snowman.As the girl discovers water in nature, in weather, in her home, and even inside her own body, water comes to life, and kids will find excitement and joy in water and its many forms.

    Readers can explore the many amazing things animals can do with their ears, eyes, mouths, noses, feet, and tails in this beautifully illustrated interactive guessing book.

    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!

    One by one, many of the seeds are lost -- burned by the sun, fallen into the ocean, eaten by a bird. But some survive the long winter and, come spring, sprout into plants, facing new dangers -- trampled by playing children, picked as a gift for a friend. Soon only the tiniest seed remains, growing into a giant flower and, when autumn returns, sending its own seeds into the wind to start the process over again. Eric Carle's eloquent text and brilliant collages turn the simple life cycle of a plant into an exciting story, a nature lesson, and an inspiring message of the importance of perseverance.

    We are all dancing sunlight. The book is co-authored by award-winning M.I.T. professor Penny Chisholm, a leading expert on ocean science. A perfect addition to any library!

    Did you know that hippos can't swim? This hilarious book is full of fun facts about all sorts of animals, from sleepy ants to jellyfish that glow!Did you know that a zebra's stripes are as unique as a human's fingerprints?How about that ants take about 250 naps per day?Or that some jellyfish can glow--and that's called bioluminescence?Colorful, humorous illustrations accompany tons of cool facts about animals of all shapes, sizes, speeds, and species in this lively book that makes nonfiction fun!

    With lyrical prose and vibrant illustrations, The Longest Day takes us on a journey through the history and science behind the summer solstice, with a focus on summer celebrations from various cultures around the world. Teachers and students alike will treasure the varied and accessible knowledge, and activities in the back let everyone in on the festivities.

    It melts into water and then vanishes! The ice cube changes from solid to liquid to gas. . . . Read on to find out more about the three states of matter.

    Frizzle's class is growing a beautiful garden. But, Phoebe's plot is empty. Her flowers are back at her old school! So, the class climbs aboard the Magic School Bus. And, of course, the kids don't only go back to Phoebe's school, but they go inside one of Phoebe's flowers! Follow the kids' adventure and learn how living things grow.