- Will it float or sink?, by Melissa Stewart ; consultants, Andrew Fraknoi, Cecilia Minden-Cupp
- Stewart, Melissa, Zoom in on insects
- Zoom in on butterflies, Melissa Stewart
- Snakes!, Melissa Stewart
- Rabbits, by Melissa Stewart
- How do spiders make webs?, by Melissa Stewart
- Fishes, by Melissa Stewart
- Stewart, Melissa, Gross and goofy body
- A seed is the start, Melissa Stewart
- Zoom in on grasshoppers, Melissa Stewart
- Whale fall, exploring an ocean-floor ecosystem, written by Melissa Stewart ; illustrated by Rob Dunlavey
- Thank you, moon, celebrating nature's nightlight, Melissa Stewart ; illustrated by Jessica Lanan
- Is the Bermuda Triangle really a dangerous place?, and other questions about the ocean, Melissa Stewart ; illustrations by Colin W. Thompson
- Summertime sleepers, animals that estivate, Melissa Stewart ; illustrated by Sarah S. Brannen
- Las serpientes, Melissa Stewart
- Pump it up!, the secrets of the heart and blood, by Melissa Stewart ; illustrated by Janet Hamlin
- Robots, [talking book], Melissa Stewart
- Blue animals, Melissa Stewart
- How do bees make honey?, by Melissa Stewart
- Yellow animals, Melissa Stewart
- Pipsqueaks, slowpokes, and stinkers, celebrating animal underdogs, written by Melissa Stewart ; illustrated by Stephanie Laberis
- Earthquakes and volcanoes, [written by Melissa Stewart]
- Animal grossapedia, Melissa Stewart
- No monkeys, no chocolate, Melissa Stewart and Allen Young ; illustrated by Nicole Wong
- Meteors, Melissa Stewart
- Zoom in on bees, Melissa Stewart
- Red animals, Melissa Stewart
- Titanic, Melissa Stewart
- Why does the moon change shape?, Melissa Stewart
- Energy in motion, by Melissa Stewart ; consultants, Andrew Fraknoi, Cecilia Minden-Cupp
- Hurricane watch, by Melissa Stewart ; illustrated by Taia Morley
- A place for bats, written by Melissa Stewart ; illustrated by Higgins Bond
- Inside lightning, by Melissa Stewart ; illustrations by Cynthia Shaw
- Under the snow, written by Melissa Stewart ; illustrated by Constance R. Bergum
- Dolphins, Melissa Stewart
- Tree hole homes, daytime dens and nighttime nooks, Melissa Stewart & Amy Hevron
- World's fastest animals, Melissa Stewart
- Green animals, Melissa Stewart
- Orange animals, Melissa Stewart
- Do people really have tiny insects living in their eyelashes?, and other questions about the microscopic world, by Melissa Stewart
- Inside Earthquakes, by Melissa Stewart ; illustrations throughout by Cynthia Shaw
- Los animales más mortales, Melissa Stewart
- Why do the seasons change?, Melissa Stewart
- Ick!, delightfully disgusting animal dinners, dwellings, and defenses, Melissa Stewart
- How is my brain like a supercomputer?, and other questions about the human body, by Melissa Stewart ; [illustrated by Peter Bull]
- Purple animals, Melissa Stewart
- Fourteen monkeys, a rain forest rhyme, Melissa Stewart ; illustrated by Steve Jenkins
- Inside Volcanoes, by Melissa Stewart ; illustrations by Melissa Stewart
- Pinocchio rex and other tyrannosaurs, by Melissa Stewart & Steve Brusatte ; illustrated by Julius Csotonyi
- Stewart, Melissa, All about a rainbow of animals