I attended part of Science Friday in 1H last week. The students were working on a culminating activity for the first investigation in FOSS Air & Weather. After learning a ton about air, its properties, and what happens when its pressured, the students were launching air balloon “rockets” on tracks set up around the room. Their excitement was contagious! But even more impressive were their explanations as I sat and spoke with each group. I look forward to going back later in the unit and seeing how things have progressed.