Lusted, Marcia Amidon . How Do Cars Drive Themselves? ISBN 9781543541403 . MacCarald, Clara . How Did Robots Land on Mars? ISBN 9781543541366 . MacCarald, Clara . How Do Wildlife Crossings Save Animals? ISBN 9781543541380 . Marquardt, Meg . How Do Bionic Limbs Work? ISBN 9781543541373 . Ringstad, Arnold . How Do Engineers Reuse Rockets? ISBN 9781543541359 .ea vol: 32p. (How'd They Do That?). further reading. glossary. index. photos. websites. Capstone . Aug. 2018. lib. ed. $28.65. Gr 2-5 Human problem-solving meets feats of modern engineering. Within each volume, curious readers will discover real-life situations where scientists and engineers used critical thinking to find solutions to problems as wide-ranging as how to reuse rockets to how to build wildlife crossings that protect both animals and people. While the sentences are a bit choppy, readers should find them straightforward and easy to understand, and amid the many photographs are the occasional gems that students will find fascinating, including one of a mummy's prosthetic toe. Educators will appreciate the critical thinking activity at the conclusion of each book, which empowers kids to be problem-solvers and encourages independent research. VERDICT A welcome addition to STEM shelves.