Description
In a classroom filled with bright reds, cheerful blues, and sunny yellows, one black marker feels ordinary and out of place. But when an unexpected discovery reveals a rainbow hidden within its ink, everything changes.
Written by chemist and educator Dr. Colleen Kelley, The Day the Black Marker Found Its Rainbow introduces young learners to the scientific concept of chromatography through an engaging story about individuality, curiosity, and hidden potential. Designed especially for preschool-aged children while charming readers of all ages, the book blends early STEM learning with emotional connection and wonder.
Through playful storytelling and vibrant classroom imagery, children are encouraged to see science not as something intimidating, but as a process of exploration, creativity, and discovery. The story naturally sparks conversations about confidence, uniqueness, observation, and the surprising complexity hidden inside ordinary things.
This saddle-stitched edition also features artwork created by sixth grade student artists, adding an authentic layer of creativity and collaboration to the reading experience.
Perfect for:
- Preschool and early elementary classrooms
- STEM and STEAM enrichment
- Library and makerspace collections
- Family read-alouds
- Homeschool science exploration
- Young learners who love art, color, and discovery
The Day the Black Marker Found Its Rainbow reminds readers that sometimes what seems simplest on the outside holds extraordinary possibilities within.



