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- Two-legged, meat-eating dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Football colors, by Mark Weakland
- Bubbles float, bubbles pop, by Mark Weakland
- What is magnetism?, by Mark Weakland
- Football ABC, by Mark Weakland
- Zombies and forces and motion, by Mark Weakland ; illustrated by Gervasio
- When Eleanor Roosevelt learned to jump a horse, by Mark Weakland ; illustrated by John Joseph
- Weakland, Mark, Science starts
- When Walt Disney rode a pig, by Mark Weakland ; illustrated by Pablo Pino
- When Ruth Bader Ginsburg chewed 100 sticks of gum, by Mark Weakland ; illustrated by Daniela Volpari
- Football opposites, by Mark Weakland
- When Neil Armstrong built a wind tunnel, by Mark Weakland ; illustrated by Luciano Lozano
- What is magnetism?, by Mark Weakland
- Two-legged, meat-eating dinosaurs, ranking their speed, strength, and smarts, Mark Weakland
- Bubbles float, bubbles pop, by Mark Weakland
- When Eleanor Roosevelt learned to jump a horse, by Mark Weakland ; illustrated by John Joseph
- When Walt Disney rode a pig, by Mark Weakland ; illustrated by Pablo Pino
- When Ruth Bader Ginsburg chewed 100 sticks of gum, by Mark Weakland ; illustrated by Daniela Volpari
- When Neil Armstrong built a wind tunnel, by Mark Weakland ; illustrated by Luciano Lozano