03/10/2026
Look What’s Happening in STEM at St. Francis Xavier: Solar Ovens and S’mores!
Students at St. Francis Xavier recently explored the power of the sun by building solar ovens as part of an exciting hands-on science activity in Mrs. K. Huggins’ 7th –8th classes. Using simple materials and sunlight, students investigated how solar energy can be captured and converted into heat.
During the experiment, students in Mrs. Higgins’ class placed the ingredients for s’mores in their solar ovens and observed how the sun’s energy warmed them enough to melt the chocolate and marshmallows. Through this fun and engaging project, students gained a deeper understanding of renewable energy, heat transfer, and insulation. One of the key discoveries students made was how aluminum foil helps reduce heat loss and acts as a reflective surface, directing the sun’s energy into the oven. The foil reflected sunlight toward the plastic wrap covering the top of the oven, trapping heat inside and raising the temperature.
Students also explored the science behind black paper inside the oven. They learned that black surfaces absorb heat rather than reflect it, which made the oven warmer and helped melt the chocolate and marshmallows more effectively. Throughout the activity, students recorded their observations and reflected on what worked well and what they might do differently in future experiments. Their enthusiasm for the project was evident as they discussed their results and the science behind the process. Most importantly, the students had a wonderful time learning through discovery. Not only did they gain a greater appreciation for the power of the sun and renewable energy, but they also enjoyed the sweet reward at the end—their delicious, sun-melted s’mores!
