CACTUS QUEEN by Lori Alexander, illustrated by Jenn Ely

THE IGUANODON'S HORN written and illustrated by Sean Rubin

LIFE AFTER WHALE, written by Lynn Brunelle and illustrated by Jason Chin

YASMEEN LARI, GREEN ARCHITECT: THE TRUE STORY OF PAKISTAN’S FIRST WOMAN ARCHITECT by Marzieh Abbas, illustrated by Hoda Hadadi

THE BOOK OF TURTLES by Sy Montgomery, illustrated by Matt Patterson

GREAT CARRIER REEF by Jessica Stremer, illustrated by Gordy Wright

SANTIAGO SAW THINGS DIFFERENTLY: SANTIAGO RAMÓN Y CAJAL, ARTIST, DOCTOR, FATHER OF NEUROSCIENCE by Christine Iverson, illustrated by Luciano Lozano

WE GO WAY BACK by Idan Ben-Barak, illustrated by Philip Bunting

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)