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- The solid truth about matter, by Mark Weakland ; illustrated by Bernice Lum; consultant, Alec Bodzin
- Scooby Doo! and the ruins of Machu Picchu, the hidden city howler, by Mark Weakland ; Consultant : David Chicoine, PhD Associate Professor, Department of Geography and Anthropology Louisiana State University
- Seeds go, seeds grow, by Mark Weakland
- Yogi Bear's guide to animal tracks, by Mark Weakland ; illustrated by Christian Cornia ; consultant, Dr. John D. Krenz
- Fred Flintstone's adventures with inclined planes, a rampin' good time!, by Mark Weakland ; illustrated by Alan Brown
- Basketball records, by Mark Weakland
- Baseball records, Mark Weakland
- How does Wi-Fi work?, by Mark Weakland
- Scooby-Doo! an addition mystery, the case of the angry adder, by Mark Weakland ; illustrated by Scott Gross
- Two-legged, meat-eating dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- When Martin Luther King Jr. wore roller skates, by Mark Weakland ; illustrated by Patrick Ballesteros
- Smash!, Wile E. Coyote experiments with simple machines, by Mark Weakland ; illustrated by Christian Cornia
- The lonely existence of asteroids and comets, by Mark Weakland ; illustrated by Carlos Aón
- Gears go, wheels roll, by Mark Weakland
- When Wilma Rudolph played basketball, by Mark Weakland ; illustrated by Daniel Duncan
- Hockey counting, by Mark Weakland
- Armored dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Football opposites, by Mark Weakland
- Hockey shapes, by Mark Weakland
- Zombies and electricity, by Mark Weakland ; illustrated by Jok
- What is light?, by Mark Weakland
- How to prevent reading difficulties, grades preK-3, proactive practices for teaching young children to read, Mark Weakland
- When Wilma Rudolph played basketball, by Mark Weakland ; illustrated by Daniel Duncan
- Football colors, by Mark Weakland
- Hockey shapes, by Mark Weakland
- Yogi Bear's guide to bugs, by Mark Weakland ; illustrated by Bryan Beach ; consultant, Dr. John D. Krenz
- Super core, turbocharging your basal reading program with more reading, writing, and word work, Mark Weakland
- Fast, strong, fearless, football adjectives, by Mark Weakland
- When Thomas Edison fed someone worms, by Mark Weakland ; illustrated by Thomas Radcliffe
- Hockey records, by Mark Weakland
- Who's who at school, By Mark Weakland ; illustrated by Nina de Polonia-Nill
- Soccer records, by Mark Weakland
- Scooby-Doo! and the truth behind werewolves, by Mark Weakland ; illustrated by Dario Brizuela
- This is my school, By Mark Weakland ; illustrated by Nina de Polonia-Nill
- When Walt Disney rode a pig, by Mark Weakland ; illustrated by Pablo Pino
- Scooby-Doo! an even or odd mystery, the case of the oddzilla, by Mark Weakland ; illustrated by Scott Gross
- Football colors, by Mark Weakland
- The adventures of Perseus, a graphic retelling, by Mark Weakland ; illustrated by Estudio Haus
- Hockey patterns, by Mark Weakland
- Las burbujas flotan, las burbujas explotan, Bubbles float, bubbles pop / by Mark Weakland, porMark Weakland.
- Duck-billed dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- DO-4U the robot experiences forces and motion, by Mark Weakland ; illustrated by Mike Moran
- Fred Flintstone's adventures with wheels and axles, Bedrock and roll!, by Mark Weakland ; illustrated by Alan Brown
- Onion juice, poop, and other surprising sources of alternative energy, by Mark Weakland
- Magnets push, magnets pull, by Mark Weakland
- Duck-billed dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Flying reptiles, ranking their speed, strength, and smarts, Mark Weakland
- What is magnetism?, by Mark Weakland
- Captain Kidd's crew experiments with sinking and floating, by Mark Weakland ; illustrated by Troy Cummings
- Horned dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Scooby Doo! and the ruins of Machu Picchu, the hidden city howler, by Mark Weakland ; Consultant : David Chicoine, PhD Associate Professor, Department of Geography and Anthropology Louisiana State University
- Yogi Bear's guide to animal tracks, by Mark Weakland ; illustrated by Christian Cornia ; consultant, Dr. John D. Krenz
- Seeds go, seeds grow, by Mark Weakland
- Who's who at school, By Mark Weakland ; illustrated by Nina de Polonia-Nill
- Soccer records, by Mark Weakland
- Wacky comparisons, wacky ways to compare size, by Mark Weakland and Jessica Gunderson ; illustrated by Bill Bolton, Keino, and Igor Sinkovec
- Basketball records, by Mark Weakland
- Fred Flintstone's adventures with inclined planes, a rampin' good time!, by Mark Weakland ; illustrated by Alan Brown
- Yogi Bear's guide to bugs, by Mark Weakland ; illustrated by Bryan Beach ; consultant, Dr. John D. Krenz
- Scooby-Doo! an addition mystery, the case of the angry adder, by Mark Weakland ; illustrated by Scott Gross
- How does Wi-Fi work?, by Mark Weakland
- Baseball records, Mark Weakland
- Two-legged, meat-eating dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Smash!, Wile E. Coyote experiments with simple machines, by Mark Weakland ; illustrated by Christian Cornia
- When Martin Luther King Jr. wore roller skates, by Mark Weakland ; illustrated by Patrick Ballesteros
- When Wilma Rudolph played basketball, by Mark Weakland ; illustrated by Daniel Duncan
- Armored dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- When Wilma Rudolph played basketball, by Mark Weakland ; illustrated by Daniel Duncan
- What is light?, by Mark Weakland
- How to prevent reading difficulties, grades preK-3, proactive practices for teaching young children to read, Mark Weakland
- When Thomas Edison fed someone worms, by Mark Weakland ; illustrated by Thomas Radcliffe
- Hockey records, by Mark Weakland
- This is my school, By Mark Weakland ; illustrated by Nina de Polonia-Nill
- Scooby-Doo! and the truth behind werewolves, by Mark Weakland ; illustrated by Dario Brizuela
- When Walt Disney rode a pig, by Mark Weakland ; illustrated by Pablo Pino
- The adventures of Perseus, a graphic retelling, by Mark Weakland ; illustrated by Estudio Haus
- Scooby-Doo! an even or odd mystery, the case of the oddzilla, by Mark Weakland ; illustrated by Scott Gross
- Duck-billed dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Fred Flintstone's adventures with wheels and axles, Bedrock and roll!, by Mark Weakland ; illustrated by Alan Brown
- Scooby-Doo! and the truth behind vampires, by Mark Weakland ; illustrated by Christian Cornia
- Duck-billed dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Scooby-Doo! and the pyramids of Giza, the phantom pharaohs, by Mark Weakland ; Consultant Professor Ethan Watrall, Department of Anthology Michigan State University
- Whoosh, crunch, roar, football onomatopoeia, by Mark Weakland
- Flying reptiles, ranking their speed, strength, and smarts, Mark Weakland
- What is magnetism?, by Mark Weakland
- Scooby-Doo! a number comparisons mystery, the case of the lunchroom gobbler, by Mark Weakland ; illustrated by Scott Gross
- Yogi Bear's guide to plants, by Mark Weakland ; illustrated by Christian Cornia ; consultant, Christopher T. Ruhland
- Extreme sports records, by Mark Weakland
- Yogi Bear's guide to rocks, by Mark Weakland ; illustrated by Bryan Beach ; consultant, Russ Colson
- When Amelia Earhart built a roller coaster, by Mark Weakland ; illustrated by Oksana Grivina
- When Ruth Bader Ginsburg chewed 100 sticks of gum, by Mark Weakland ; illustrated by Daniela Volpari
- Horned dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- When Bill Gates memorized an encyclopedia, by Mark Weakland ; illustrated by Jeff Ebbeler
- Scooby-Doo! and the cliff dwellings of Mesa Verde, the ghostly gaze, by Mark Weakland ; Consultant: Julie Markin, PhD Assistant Professor of Anthropolgy Washington College
- Football records, by Mark Weakland
- Thud!, Wile E. Coyote experiments with forces and motion, by Mark Weakland ; illustrated by Christian Cornia
- Scooby-Doo! a subtraction mystery, the case of the disappearing doughnuts, by Mark Weakland ; illustrated by Scott Gross
- When Neil Armstrong built a wind tunnel, by Mark Weakland ; illustrated by Luciano Lozano
- Long-necked dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Scooby-Doo! and the buried city of Pompeii, the ghastly guide, by Mark Weakland ; Consultant : Jessie Weiner, PhD Assistant Professor of Classics Hamilton College