Here are 12 "hypotheses," as well as lists of "what you need," "what to do," and "what happened" that are sure to make young readers laugh out loud as they learn how to conduct science experiments (really!). Jenny Offill and Nancy Carpenter—the ingenious pair that brought you 17 Things I'm Not Allowed to Do Anymore—have outdone themselves in this brilliant and outrageously funny book.

    REX springs out, flashing a startling jawful of jagged teeth. Turn the next spread and a ravishing raptor unfurls and appears to fly off the edge of the page. Inside the amazing ENCYCLOPEDIA PREHISTORICA: DINOSAURS are "shield bearers" in full-body armor, creatures with frilly headgear, and weighty, long-necked giants. There are even amusing tidbits on the history of paleontology itself — like a pop-up version of a Victorian New Year's dinner in the belly of a dinosaur model, or a pair of scientists locked in a literal tug-of-war over bones.Full of fascinating facts and lighthearted good humor, this breathtaking book includes fascinating, up-to-the-minute information about popular dinosaurs as well as many lesser-known varieties. With each of six spreads featuring one spectacular, large pop-up as well as booklets of smaller pop-ups and text, ENCYCLOPEDIA PREHISTORICA: DINOSAURS is a magnificent display of paper engineering and creativity — an astonishing book that will be read, admired, and treasured forever.

    . .Shade spillerMouth fillerTree topperRain stopperFind out about the many roles leaves play in this poetic exploration of leaves throughout the year.

    Over 7,000 years ago Native Americans settled on the Nashua River, a beautiful and leafy valley. But the industrialization of nearby areas would lead to the deterioration of natural habitats. Each double spread examines brief periods of time when the river and surrounding areas teemed with wildlife. Lynne Cherry’s contrasting illustrations of the lush valley and the eventual polluted river deliver an astonishing look at our dramatic need for conservation efforts. This pictorial history of the river, edging towards a hopeful scene of modern-day descendants of both Native Americans and European settlers who come together to combat pollution and restore the beauty of the river, is an intelligent tale that shows young readers how they can do their part in taking care of the world around them, one river at a time.

    Today, more than 30 million trees have been planted throughout Mama Miti’s native Kenya, and in 2004 she became the first African woman to win the Nobel Peace Prize. Wangari Muta Maathai has changed Kenya tree by tree—and with each page turned, children will realize their own ability to positively impact the future.

    Soon the fruit is big, red, and ready to be picked. It's time to make an apple pie! Here is a celebration of apples and how things grow--sure to delight young readers all year long.

    But over many years, as more and more land was cleared, Kenya was transformed. When Wangari returned home from college in America, she found the village gardens dry, the people malnourished, and the trees gone. How could she alone bring back the trees and restore the gardens and the people?Bill McKibben, author of The End of Nature, says: Wangari Maathai's epic story has never been told better--everyone who reads this book will want to plant a tree!With glowing watercolor illustrations and lyrical prose, Claire Nivola tells the remarkable story of one woman's effort to change the fate of her land by teaching many to care for it. An author's note provides further information about Wangari Maathai and the Green Belt Movement. In keeping with the theme of the story, the book is printed on recycled paper.

    Chock-full of information about the weather, animals, insects, and plants, including dozens of simple science experiments, this is a reference book that offers fun for the whole family.

    With lovely language and a sly sense of humor, this beautiful picture book celebrates the tenacious temperaments of these pesky plants and is sure to have little ones chanting, “Way to go, weeds!”

    Birds leave, flowers, too. Apples and temperatures fall—then snow! Part poem, part silent stage, this luminous picture book puts autumn on display and captures the spirit of change that stays with us long after fall leaves. Unlock the secrets of this busy and beautiful time of year as the natural world makes way for winter.

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

    

    Sip. Pour me a cup. Water is water unless...it heats up.Whirl. Swirl. Watch it curl by. Steam is steam unless...it cools high.This spare, poetic picture book follows a group of kids as they move through all the different phases of the water cycle. From rain to fog to snow to mist, talented author Miranda Paul and the always remarkable Jason Chin (Redwoods, Coral Reefs, Island, Gravity) combine to create a beautiful and informative journey in this innovative nonfiction picture book that will leave you thirsty for more.

    S. of A. States all over the country were waking up, having their first cups of coffee, reading the morning paper, and enjoying the beautiful sunrise.All the states, that is, except for Kansas."At the first annual "states party," Virginia and Idaho hatch a plan to swap spots so each can see another part of the country. Before the party is over, all the states decide to switch places. In the beginning, every state is happy in its new location. But soon things start to go wrong. Will the states ever unscramble themselves and return to their proper places?Packed with madcap humor and whimsical illustrations, this quirky story-starring all fifty states-is chock-full of introductory facts and silly antics that will make learning geography as much fun as taking a vacation.

    With clever peekaboo holes throughout, each page reveals a new set of animals playing and living in the tree—baby bears frolicking in the spring, bees buzzing around apples in the summer, squirrels storing nuts in the fall, and finally the lone owl keeping warm during the winter chill—until another year begins. . . .   Children will love seeing a new set of animals appear and then disappear as each page is turned, and along the way they’ll learn about the seasons and how a forest and its inhabitants change throughout the year."Ideal for sharing up close, where little ones can get a good look at the pictures, this gentle, easy-to-memorize story of the seasons is a great fit for bedtime."—Booklist