In Alaska, learning often begins with what is right outside our door. Our land, culture, and environment provide endless opportunities for meaningful, hands-on education, and in our science classroom, Alaskan blueberries have become an unexpected but powerful teaching tool.
This year, students at Tok School in the Alaska Gateway School District explored how locally harvested Alaskan blueberries can serve as an alternative to traditional pH paper. What began as simple curiosity quickly turned into an authentic scientific investigation that blended chemistry, environmental science, and cultural relevance.
Alaskan blueberries are rich in anthocyanins, natural pigments that change color depending on acidity and alkalinity. Rather than relying on store-bought lab materials, students extracted pigment from blueberries using simple, accessible methods. The resulting solution became a natural pH indicator, one that visibly shifted colors when exposed to acidic and basic substances.
For students, this was more than a lab activity. It was science they could touch and connect to their everyday lives. Many of them were already familiar with blueberry picking through family traditions, subsistence practices, and community gatherings. Seeing those same berries used in a scientific context validated their lived experiences and reinforced the idea that science exists everywhere, not just in textbooks.
The investigation encouraged students to ask real scientific questions:
- How does the color change compare to commercial pH paper?
- What pH range produces the strongest color shift?
- How stable is the blueberry indicator over time?
Students tested household substances such as vinegar, baking soda solutions, soap and water, carefully recording color changes and comparing results to standard pH scales. The classroom quickly transformed into collaborative research space where observation, discussion, and problem-solving were constant.
One of the most powerful outcomes of this project was student ownership. Because the materials were local and familiar, students felt confident taking the lead. These moments of guidance became some of the most meaningful learning experiences. Rather than providing answers, I, as a teacher, asked guiding questions that helped students refine their techniques and improve their observations. This approach allowed students to build confidence while still operating within a structured and supportive learning environment.
This project also highlighted how innovation in Alaska’s schools often comes from creativity rather than expensive equipment. Using local resources allowed us to engage in high-quality science while keeping costs low and access high. It demonstrated that rigorous learning can happen anywhere. Especially when educators are supported in adapting curriculum to their community.
Beyond chemistry, the blueberry pH paper project opened conversations about sustainability, traditional knowledge, and the importance of place-based education. Students began to see themselves not just as learners, but as contributors to knowledge, capable of creating solutions rooted in their own environment.
Projects like this reflect strength of Alaska’s school system: Supportive educators, curious students, and willingness to innovate in ways that honor local culture and resources. When students see their home reflected in their learning, engagement deepens, and science becomes something they belong in.
Adrian Suladay is a high school science teacher at Tok School in the Alaska Gateway school District. He can be reached at asuladay@agsd.us.