======Soda Can Crusher====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Air Pressure Can Implosion ====Summary==== {{$demo.summary}} ====Procedure==== -Rinse an empty aluminum soda can and add about 1 tablespoon of water to it. -Fill a bowl with cold water and place it near the heating surface. -Wearing safety glasses, set the can upright on an electric burner or hot plate. -Warm the can until you see a strong stream of water vapor from the opening. -Grasp the can near its base with tongs. -In one smooth motion, lift the can, invert it, and plunge the mouth straight down into the cold water so the rim seals against the surface. -Observe the can imploding as water is pushed up into it. -Let everything cool before handling. ====Links==== Crushing a Can with Air Pressure - Andrew Gatt: {{youtube>GV0VD4EF2YE?}}\\ Air Pressure Can Crush - Can Implosions - The Sci Guys: {{youtube>xg5NiOwf_Zw?}}\\ 📄 Crushed Can Experiment - Little Bins for Little Hands: [[https://littlebinsforlittlehands.com/air-pressure-can/]]\\ 📄 Incredible Can Crush - Science World: [[https://www.scienceworld.ca/resource/incredible-can-crush/]]\\ Atmospheric pressure crushes 220 litre drum - Mr Gedge's Geography Channels: {{youtube>j0TQxYemrgg?}}\\ Mythbusters 14x02 Tanker Crush: {{youtube>kM-k1zofs58?}}\\ ====Variations==== *Try different water volumes inside the can (a few drops vs a tablespoon) and note the result. *Compare cans of different sizes if available. ====Safety Precautions==== *Adult supervision required when using any heat source. *Wear safety goggles, handle the hot can only with tongs. *Use an electric stove or hot plate on a stable, clear, heat-resistant surface. Keep combustibles away. *Keep face and body parts away from the can opening during heating and inversion. *Allow equipment to cool fully before touching or repeating; wipe up any spills promptly. ====Questions to Consider====