At this year’s competition, young innovators showed how STEM and imagination can come together to turn ambitious ideas into tangible outcomes. Auto-sorting trash points, smart urban farming systems and a temperature-regulating city. These futuristic ideas may sound like the work of seasoned engineers, but at the National STEM Championship 2025 (NSTEMC), these bold prototypes came from Singapore’s secondary school students. Organised by Science Centre Singapore (SCS), this annual competition