The students who placed in the Science Exploration Day rankings were evaluated by their peers. The winners for each class were completely chosen by their peers on who did the best job in terms of presenting a good, solid science project that had science understanding behind it, Pieper said. The activities varied across the building and included student-led demonstrations and experiments, design challenges and model building, Lotrich said. Our upper elementary students demonstrated their activity to their classmates and explained the science behind it. Mrs. Pieper’s and Mrs. Nesselhuf’s high school science classes also contributed to the day with demonstrations and explanations.