======Steel Wool and Vinegar Exothermic Reaction====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Rusting Heat Demonstration ====Summary==== {{$demo.summary}} ====Procedure==== - Place steel wool in a beaker. - Pour vinegar over the steel wool and let it soak for about one minute. - Remove the steel wool and squeeze out excess vinegar. - Wrap the steel wool around the base of a thermometer. - Place both into a second beaker. - Cover the beaker with paper or a lid to help retain heat, leaving a small hole for the thermometer. - Record the initial temperature, then observe and record temperature changes over five minutes. ====Links==== Steel Wool and Vinegar Experiment | Energy - The Good and the Beautiful: {{youtube>Y3WtS0Os06A?}}\\ EXOTHERMIC REACTION: Steel Wool + Vinegar = HEAT - Science Kids: {{youtube>2ma1Dxf4FIg?}}\\ 📄 Steel Wool & Vinegar Reaction - Science Kids: [[https://www.sciencekids.co.nz/experiments/steelwoolvinegar.html]]\\ ====Variations==== * Try using different metals (e.g., aluminum foil or copper wire) to compare reactions. * Soak the steel wool for longer or shorter times to see how preparation affects the reaction. ====Safety Precautions==== * Wear safety goggles to protect your eyes from splashes. * Wear gloves when handling vinegar-soaked steel wool to avoid skin irritation. * Dispose of used steel wool properly—do not leave damp steel wool in a closed container, as it may continue to react. ====Questions to Consider==== * Why does the temperature increase when steel wool rusts? (Because oxidation is an exothermic reaction that releases heat.) * What role does vinegar play in this reaction? (It removes the protective coating on the steel wool, exposing iron to oxygen.) * Is rusting normally a fast or slow process? (Rusting is usually slow, but vinegar speeds it up by stripping away barriers.) * How is this different from other exothermic reactions like combustion? (Rusting releases heat gradually, while combustion releases heat and light rapidly.)