Explore the ups and downs of gravity in this introduction to physical science by a trusted nonfiction team. What happens to a ball when it rolls off a table? It falls to the floor. Why doesn't the ball keep rolling straight ahead or fly up off the table? The answer is gravity. From density to inertia to free fall, David A. Adler skillfully explains how this invisible, but all too real force operates and what it means for our daily lives. Notable science experiments by Sir Isaac Newton and astronaut David R. Scott are covered. Also included are activities for kids to test at home and in the classroom. Anna Raff's bright and humorous artwork helps breakdown the concepts in a kid-friendly way. Vetted by a physicist, this fact-filled primer includes a glossary.
How does this city garden grow? With help from L'il Sissy and her siblings--and love, love, love! A celebration of nature, family, and food. Visiting the city from her home in the suburbs, an African American girl sees how a few packets of seeds, some helping hands, and hard work transform an empty lot in a housing project into a magical place where vegetables grow and family gathers. It's the magic of nature in the heart of the city! Bernette Ford's autobiographical story is a loving glimpse at a girl, her siblings, and her uncle, and their shared passion for farming. L'l Sissy's fascination with measurement, comparison, and estimation introduces children to STEM concepts. And the progress of Uncle John's garden introduces readers to the life cycle of plants. Frank Morrison, winner of multiple Coretta Scott King awards and an NAACP Image Award, depicts dramatic cityscapes as well as the luscious colors and textures of Nature. A Junior Library Guild Gold Standard Selection
誰說女生就不擅長科學《The Atlas Six》作者帶來STEM滿點的YA處女作。機械方面的潛能讓對未來毫無計畫的Bel被迫加入機器人社團，看Bel在男生主導的機器人社團中，發揮潛能贏得一席之地又收獲愛情。Nerds are so hot.Especially battle robot building nerds. Bel would rather die than think about the future. College apps? You're funny. After-school robotics clubs? Not a chance. But when Bel accidently reveals her talent for engineering in class, she's basically forced into joining her school's legendary robotics club. Make that her school's way-too-bro, way-too-competitive robotics club. All the boys ignore Bel and even Neelam, the only other girl on the team, doesn't seem to like her. Enter Mateo Luna, captain of the club (and the whole school tbh), who at first seems to support Bel, recognizing her talent--until they start butting heads. They're oil and water: Bel won't ask for help and Teo refuses to take it. As the nights of after-school work grow longer and longer, Bel and Teo realize they've built more than just a combat-ready robot along the way to nationals: they've made spa
