Unit 15: Texas City Fertilizer Explosion (1947) | STEM Chemical Disaster

Investigate the deadliest industrial accident in American history with this complete 6-page printable STEM Case Study Packet! Designed specifically for middle and high school classrooms, this unit provides a deep, informative look at the 1947 Texas City Disaster, ammonium nitrate thermal decomposition chemistry, detonation shockwave mechanics, cargo hold confinement physics, hazardous material handling, and port safety ethics. What’s Included in this 6-Page Deep-Dive Packet: Page 1: Historical Case Study & Technical Breakdown – Full historical narrative of the April 16, 1947 disaster at the Port of Texas City, SS Grandcamp cargo fire, ammonium nitrate (NH4NO3) prill coating chemistry, thermal decomposition reaction kinetics, steam-hatch confinement pressure, shockwave propagation, and comprehension check questions. Page 2: Day in the Life Scenario Challenge – Students step into the shoes of a Port Marine Safety Inspector at 08:30 AM on April 16, 1947, analyzing cargo hold temperature spikes, orange-brown nitrogen dioxide smoke indicators, hatch sealing errors, and emergency port evacuation protocols. Page 3: Hands-On Unplugged Simulation & Applied Math – Simple step-by-step math calculations comparing thermal decomposition energy release (Joules), explosive equivalence in TNT tonnage, and shockwave overpressure radius formulas (PSI). Page 4: Engineering Ethics & Workplace Dilemma – Handling hazardous cargo without safety markings vs port speed: analyzing the lack of dangerous cargo labels on waxed ammonium nitrate bags, smoking rules on wooden ships, firefighter hazard awareness, and maritime safety reform. Page 5: Redesign Brief & Innovation Lab – Creative blueprinting assignment where students design "Port Hazardous Cargo Handling Terminal V-2," featuring inert mineral-coated fertilizer formulations, ventilated automated cargo holds, remote deluge fire suppression, and blast-resistant port bunkers. Page 6: Teacher Answer Key & Scoring Rubric – Complete answer key for all questions and math problems, plus a 10-point grading rubric on Page 6 for evaluating student work on Page 5. Teacher Benefits: 100% Unplugged & Copy-Paste Friendly – Clean text layout with zero dark background boxes, code block syntax, or special math symbols for seamless editing in Word, Google Docs, or Canva. Multi-Day Classroom Value – Covers 3 to 5 full class periods; perfect for Chemistry, Physical Science, Environmental Science, Chemical Engineering, US History electives, or emergency sub plans. Highly Engaging Content – Combines chemical reaction math, shockwave physics, port control room telemetry, maritime ethics, and industrial safety redesign!