Sometimes a germ catches up with you.Germs are all around you, but they are too small for you to see. Many germs are harmless, but two kinds, viruses and bacteria, can make you sick. Read and find out about germs, how they can make you sick, and how your body works to fight them off and keep you healthy.

    Now Sophie tells her story in this picture book that celebrates women in science, bugs of all kinds, and the importance of staying true to yourself.Sophia Spencer has loved bugs ever since a butterfly landed on her shoulder--and wouldn't leave--at a butterfly conservancy when she was only two-and-a-half years old. In preschool and kindergarten, Sophia was thrilled to share what she knew about grasshoppers (her very favorite insects), as well as ants and fireflies... but by first grade, not everyone shared her enthusiasm. Some students bullied her, and Sophia stopped talking about bugs altogether. When Sophia's mother wrote to an entomological society looking for a bug scientist to be a pen pal for her daughter, she and Sophie were overwhelmed by the enthusiastic response--letters, photos, and videos came flooding in. Using the hashtag BugsR4Girls, scientists tweeted hundreds of times to tell Sophia to keep up her interest in bugs--and it worked! Sophia has since appeared on Good Morning America, The Today Show, and NPR, and she continues to share her love of bugs with others.

    Facts about the composition of the earth are conveyed painlessly and memorably.’ —SLJ. ‘An exciting adventure. . . . Illustrations [by Caldecott Medal winner Marc Simont] explode with color and action.’ —CS. Best Books of 1979 (SLJ)Children's Choices for 1980 (IRA/CBC)A Reading Rainbow Selection

    She has to use standard units like inches and nonstandard units like paper clips to find out height, width, length, weight, volume, temperature, and time. Lisa decides to measure her dog, Penny, and finds out ... Penny's nose = 1 inch long Penny's tail = 1 dog biscuit longPenny's paw print = 3 centimeters wide ... and that's only the beginning! Lisa learns a lot about her dog and about measuring, and even has fun doing it.This clear and engaging concept book, delivered with a sense of humor, is certain to win over the most reluctant mathematician.

    And, it's true, many of them do. But Paul Erdos never followed the usual path. At the age of four, he could ask you when you were born and then calculate the number of seconds you had been alive in his head. But he didn't learn to butter his own bread until he turned twenty. Instead, he traveled around the world, from one mathematician to the next, collaborating on an astonishing number of publications. With a simple, lyrical text and richly layered illustrations, this is a beautiful introduction to the world of math and a fascinating look at the unique character traits that made "Uncle Paul" a great man.

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

    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.

    Tomie dePaola--best-selling author of Strega Nona, Quiet, and many others--knows a lot about clouds. He also knows a lot about what people think of them.Some people see animals and pictures in clouds. The ancient Greeks believed that Hermes, the messenger of the gods, once stole the sun's cattle, which were clouds.In this unique picture book, Tomie introduces some of the most common types of clouds, as well as the myths and legends inspired by their shapes. Simple, whimsical illustrations show the variations in shape and color that herald changes in the weather.This book will tell you many things about clouds we bet you didn't know. Filled with his signature humor and gentle illustrations, Tomie dePaola's approach to nonfiction is like no other.A Reading Rainbow book.

    This award-winning book by Janell Cannon has sold over 500,000 copies and was on the bestseller list for more than two years.

    Birds and other animals scurry about looking for food. When they get tired, they stop to rest at a giant cactus. It is their hotel in the desert!

    The class wants to help look for her. Ms. Frizzle says, "The best way to find a frog is to be a frog!" So, the kids take a ride on the Magic School Bus. Join them as they shrink to frog size and learn all about animal habitats!

    From its opening pages, the book suggests that we are intimately connected to the natural world; it compares the way we learn to speak to the way baby birds learn to sing, and the growth of human bodies to the growth of forests. Award-winning author Elin Kelsey — along with a number of concerned parents and educators around the world — believes children are losing touch with nature. This innovative picture book aims to reintroduce children to their innate relationship with the world around them by sharing many of the surprising ways that we are all connected to the natural world.Grounded in current science, this extraordinary picture book provides opportunities for children to use their imaginations and wonder about some big ideas. Soyeon Kim’s incredible diorama art enhances the poetic text, and her creative process is explored in full on the reverse side of the book’s jacket, which features comments from the artist. Young readers will want to pore over each page of this book, exploring the detailed artwork and pondering the message of the text, excited to find out just how connected to the Earth they really are.

    She is small. Very small. In fact so small that you'd need to look through a microscope to see her. Or you can simply open this book and take Min on an adventure to amazing places she's never seen before—like the icy glaciers of your tooth or the twisted, tangled jungle that is your shirt. The perfect book for anyone who wants to take a closer look at the world.

    WeatherWill it be warm or cold?Should we wear shorts or pants?Shoes or boots?Read and find out why the weather is so difficult to predict.

    By looking for patterns, symmetries, and familiar number combinations within eye-catching pictures, math will become easier, quicker, and more fun than anyone could have imagined!