======Fire Tornado====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Spinning Fire Column ====Summary==== {{$demo.summary}} ====Procedure==== - Roll a metal screen into a cylinder 2.5–3 feet tall, securing it with wire or staples. - Place the cylinder upright on a rotating tray (Lazy Susan), ensuring it is centered. - Set a small glass dish with pieces of sponge in the middle of the tray, ideally on a heat-resistant base. - Soak the sponge pieces thoroughly with lighter fluid. - Put on safety glasses and light the fire. Spin the tray gently without the screen to observe normal flames. Extinguish with a plate. - Relight the fire, place the screen cylinder over it, and spin the tray. The rising hot air will twist into a fire tornado inside the screen. - Remove the screen and extinguish the fire when finished. ====Links==== Fire Tornado Experiment (Physics) - BeardedScienceGuy: {{youtube>sIKrdIMz-EM?}}\\ How to Make a Fire Tornado - Cool Science Demo - TheSpanglerEffect: {{youtube>kz5dJ9SCu4M?}}\\ 📄 Fire Tornado - Steve Spangler: [[https://stevespangler.com/experiments/fire-tornado/]]\\ ====Variations==== * Experiment with different mesh sizes or thicknesses of screen wire to see how the tornado shape changes. * Try using a record player turntable as the rotating platform. ====Safety Precautions==== * TEACHERS ONLY – This demonstration should only be performed by trained science demonstrators. * Always wear safety glasses when handling fire. * Keep a fire extinguisher nearby at all times. * Perform in a well-ventilated area away from flammable materials. * Never allow students or untrained individuals to handle lighter fluid or the flame. ====Questions to Consider==== * Why does the fire not form a tornado without the screen? (The screen transfers angular momentum to the rising air, giving it a spin.) * What natural conditions cause fire tornadoes in wildfires? (Strong updrafts of hot air combined with swirling winds through trees and terrain.) * Why must the screen cylinder be centered on the tray? (If off-center, the screen wobbles and the tornado effect fails.) * How does this model help firefighters understand real fire behavior? (It shows how airflow and heat can combine to create dangerous spinning fire columns.)