Henrietta spent years measuring star positions and sizes from photographs taken by the telescope at the Harvard College Observatory, where she worked. After Henrietta observed that certain stars had a fixed pattern to their changes, her discovery made it possible for astronomers to measure greater and greater distances—leading to our present understanding of the vast size of the universe.An astronomer of her time called Henrietta Leavitt “one of the most important women ever to touch astronomy,” and another close associate said she had the “best mind at the Harvard Observatory.” Henrietta Leaveitt's story will inspire young women and aspiring scientists of all kinds and includes additional information about the solar system and astronomy.

    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.

    Peek into this bright and lively book and discover the big ways this little insect contributes to the beauty of the environment, from pollinating colorful flowers to buzzing about the bright and beautiful meadow.With clever peekaboo holes throughout, each page reveals new flowers and plants, plus a look inside a beehive as the bees work together to help a plants grow.Children will love seeing the details of a bee's active day as each page is turned, and along the way they'll learn about ways in which bees and plants works together to produce a healthy, beautiful environment.And look for its companion books, Tree, Moon, and The Twelve Days of Christmas, in the same Peek-Through Picture Book series!"Ample opportunities can be found to linger over the vibrant multimedia collages of meadows, woods, hedgerows, streams, and, most of all, the flowers bursting from the pages. An inviting introduction to the busy lives of honeybees."--Booklist

    And illustrator Priscilla Lamont's funny, friendly paintings make this a garden everyone will want to explore.Kids will eat up this wonderful book of backyard science—and perhaps they'll even be inspired to eat their vegetables!"A wonderfully informative and enjoyable journey through one family’s backyard garden, from spring planting to fall harvest. . . . this is bound to spark some backyard explorations." —Kirkus, Starred ReviewFrom the Hardcover edition.

    The girl in this book grows chocolate rabbits, tomatoes as big as beach balls, flowers that change color, and seashells in her garden.How does your garden grow?

    In this playful introduction to maps and geography, step by simple step, a young girl shows readers herself on a map of her room, her room on the map of her house, her house on the map of her street--all the way to her country on a map of the world. Once the reader is familiar with the maps, she demonstrates how readers can find their own country, state, and town--all the way back to their room--on each colorful map. Easy-to-read text, bright artwork, and charming details give children a lot to search for and will have them eager to help navigate on the next family vacation.  From the Hardcover Library Binding edition.

    Kids are invited to find out where worms live, see how they move, and understand why gardeners consider them friends with the help of this humorous and informative look at an unappreciated — and fascinating — creature.

    Beetles squeak and beetles glow.Beetles stink, beetles sprint, beetles walk on water.With legs, antennae, horns, beautiful shells, knobs, and other oddities—what’s notto like about beetles?The beetle world is vast: one out of every four living things on earth is a beetle.There are over 350,000 different species named so far and scientists suspect there maybe as many as a million.From the goliath beetle that weighs one fourth of a pound to the nine inch longtitan beetle, award-winning author-illustrator Steve Jenkins presents a fascinating arrayof these intriguing insects and the many amazing adaptations they have made tosurvive.

    I'm a gradener. I grow happy.Let me show you how. Kiko is a gardener. She takes care of her garden with seeds, soil, water, and sunshine. In Grow Happy, Kiko also demonstrates how she cultivates happiness, just like she does in her garden. Using positive psychology and choice theory, this book shows children that they have the tools to nurture their own happiness and live resiliently. Just as Kiko possesses the resources needed--seeds, soil, water--to build a thriving garden, she also has the tools to nurture her own happiness--including social support, choices, and problem-solving skills. Grounded in principles of positive psychology and choice theory, Grow Happy helps kids understand that they play an important role in cultivating their own happiness using resources at their disposal. Includes a Note to Parents and Caregivers with information on how our choices and paying attention to our bodies and feelings affects happiness.

    Enchanting die-cuts illustrate the vital connections between the layers of an ecosystem in this magical book. Wander down the forest path to learn how every tree, flower, plant, and animal connect to one another in spiraling circles of life. An acorn is just the beginning.

    Now, in Plant a Pocket of Prairie, Root and Bowen take young readers on a trip to another of Minnesota’s important ecosystems: the prairie.Once covering almost 40 percent of the United States, native prairie is today one of the most endangered ecosystems in the world. Plant a Pocket of Prairie teaches children how changes in one part of the system affect every other part: when prairie plants are destroyed, the animals who eat those plants and live on or around them are harmed as well. Root shows what happens when we work to restore the prairies, encouraging readers to “plant a pocket of prairie” in their own backyards.By growing native prairie plants, children can help re-create food and habitat for the many birds, butterflies, and other animals that depend on them. “Plant cup plants,” Root suggests. “A thirsty chickadee might come to drink from a tiny leaf pool. Plant goldenrod. A Great Plains toad might flick its tongue at goldenrod soldier beetles.” An easy explanation of the history of the prairie, its endangered status, and how to go about growing prairie plants follows, as well as brief descriptions of all the plants and animals mentioned in the story.With Betsy Bowen’s beautiful, airy illustrations capturing the feel of an open prairie and all its inhabitants, readers of all ages will be inspired to start planting seeds and watching for the many fascinating animals their plants attract. What a marvelous transformation could take place if we all planted a pocket of prairie!

    A former basketball star, he's as tall as his truck, and he can hold a cabbage--or a basketball--in one hand. But what is most special about Farmer Will is that he can see what others can't see. When he looked at an abandoned city lot in Milwaukee he saw a huge table, big enough to feed the whole world.No space, no problem. Poor soil, there's a solution. Need help, found it. Farmer Will is a genius in solving problems. In 2008, the MacArthur Foundation named him one for his innovative urban farming methods, including aquaponics and hydroponics.Jacqueline Briggs Martin, author of the Caldecott Medal winner, Snowflake Bentley, and Alice Waters and the Trip to Delicious , along with debut artist Eric-Shabazz Larkin's striking artwork, tells the inspiring story of the African American innovator, educator, and community builder.Farmer Will Allen is the first book of Martin's Food Heroes series, followed by Alice Waters and the Trip to Delicious. In 2015, it was selected by Points of Light Foundation to set a new Guinness World Record for the most children reading the same book across the globe to promote literacy. Nearly 300,000 participated.

    With roots in American slave tales, Tops & Bottoms celebrates the trickster tradition of using one’s wits to overcome hardship. “As usual, Stevens’ animal characters, bold and colorful, are delightful. . . . It’s all wonderful fun, and the book opens, fittingly, from top to bottom instead of from side to side, making it perfect for story-time sharing.”--BooklistThis title has been selected as a Common Core Text Exemplar (Grades 2-3, Stories)

    Important vocabulary is reinforced with accessible explanation and colorful, clear diagrams showing the parts of plants, the wide variety of seeds, and how they grow.The book includes instructions for a seed-growing project, and a page of interesting facts about plants, seeds, and flowers. A nonfiction classic, and a perfect companion for early science lessons and curious young gardeners.According to The Washington Post, Gail Gibbons has taught more preschoolers and early readers about the world than any other children's writer-illustrator. Ms. Gibbons is the author of more than 100 books for young readers, including the bestselling titles From Seed to Plant and Monarch Butterfly. Her many honors include the Washington Post/Childrens Book Guild Nonfiction Award and the NSTA Outstanding Science Trade Book Award.From Seed to Plant was included in the Common Core State Standards Appendix B.

    She takes them on field trips to explore places to grow. In her cozy maple tree house, she nurtures them; keeping them safe and warm until it's time for them to find roots of their own, and grow into the magnificent plants they’re destined to become.Eliza Wheeler’s luminous paintings feature gorgeous landscapes, lush foliage and charming details. Her tender story celebrates the potential found in each seed—since even the grandest tree and most brilliant flower had to grow from the smallest of seeds.Celebrate every season with Miss Maple, from Earth Day to graduations to harvest festivals.