ANGLERFISH: THE SEADEVIL OF THE DEEP by Elaine M. Alexander, illustrated by Fiona Fogg 

INFINITY: FIGURING OUT FOREVER by Sarah C. Campbell, photographed by Sarah C. Campell and Richard P. Campbell

THE MYSTERY OF THE MONARCHS by Barb Rosenstock; illustrated by Erika Meza

BUTTERFLY FOR A KING: Saving Hawaii's Kamehameha Butterflies by Susan L. Roth and Cindy Trumbore 

COUGAR CROSSING: How a Celebrity Cougar Helped Build a Bridge for City Wildlife by Meeg Pincus; illustrated by Alexander Vidal (Winner)

THE GREAT STINK: How Joseph Bazalgette Solved London's Poop Pollution Problem by Colleen Paeff; illustrated by Nancy Carpenter

NANO: The Spectacular Science of the Very (Very) Small by Dr. Jess Wade; illustrated by Meliisa Castrillón

YOUR PLACE IN THE UNIVERSE by Jason Chin (Winner)

HONEYBEE: The Busy Life of Apis Mellifera by Candace Fleming; illustrated by Eric Rohman

IF YOU TAKE AWAY THE OTTER by Susannah Buhrman-Deever; illustrated by Matthew Trueman

PERKIN'S PERFECT PURPLE: How a Boy Created Color With Chemistry by Tami Lewis Brown and Debbie Loren Dunn; illustrated by Francesca Sanna

MARIO AND THE HOLE IN THE SKY: How a Chemist Saved Our Planet by Elizabeth Rusch; illustrated by Teresa Martínez (winner)

FLOWER TALK: How Plants Use Color to Communicate  by Sara Levine; illustrated by Masha D’Yans 

HEDY LAMARR'S DOUBLE LIFE by Laurie Wallmark; illustrated by Katy Wu

SECRET ENGINEER: How Emily Roebling Built the Brooklyn Bridge, by Rachel Dougherty

COUNTING ON KATHERINE by Helaine Becker; illustrated by Dow Phumiruk (Winner)

FOSSIL BY FOSSIL: Comparing Dinosaur Bones by Sara Levine; illustrated by T.S. Spookytooth 

IF POLAR BEARS DISAPPEARED by Lily Williams

NOTHING STOPPED SOPHIE: The Story of Unshakable Mathematician Sophie German by Cheryl Bardoe; illustrated by Barbara McClintock

BEAUTY AND THE BEAK: How Science, Technology, and a 3D-Printed Beak Rescued a Bald Eagle by Deborah Lee Rose & Jane Veltkamp (Winner)

GRAND CANYON by Jason Chin

THE HIDDEN LIFE OF A TOAD by Doug Wechsler

KARL, GET OUT OF THE GARDEN!: Carolus Linnaeus and the Naming of Everything by Anita Sanchez; illus. by Catherine Stock

FOLLOW THE MOON HOME: A Tale of One Idea, Twenty Kids, & a Hundred Sea Turtles by Phillipe Cousteau & Deborah Hopkinson; illus. by Meilo So

JOURNEY: Based on the True Story of OR7, The Most Famous Wolf in the West by Emma Bland; illus. by Robin James (Winner)

SOLVING THE PUZZLE FROM UNDER THE SEA: Marie Tharp Maps the Ocean Floor by Robert Burleigh; illus. by Raúl Colón

WHOOSH! Lonnie Johnson’s Super-Soaking Stream of Inventions by Chris Barton; illus. by Don Tate

ADA BYRON LOVELACE AND THE THINKING MACHINE by Laurie Wallmark; illus. by April Chu

HIGH TIDE FOR HORSESHOE CRABS by Lisa Kahn Schnell; illus. by Alan Marks

MESMERIZED: how Benjamin Franklin solved a mystery that baffled all of France by Mara Rockliff; illus by Iacopo Bruno (Winner)