/*******************************************************************************************************/ /* TITLE - Required */ /*******************************************************************************************************/ ====== Big Dry Ice Bubble ====== /*******************************************************************************************************/ /* GREY BOX INFORMATION - Required */ /*******************************************************************************************************/ /* Leave this unchanged */ **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ /*******************************************************************************************************/ /* Alternative Titles - Optional (But the text must be left in) */ /*******************************************************************************************************/ **Alternative titles:** Dry Ice Bubble /*******************************************************************************************************/ /* SUMMARY - Required */ /*******************************************************************************************************/ /* Leave this unchanged */ ====Summary==== {{$demo.summary}} /*******************************************************************************************************/ /* PROCEDURE - Optional */ /*******************************************************************************************************/ ====Procedure==== - Place a piece of dry ice into a large bowl and pour in some water. - Mix dish soap with water to create a bubble solution. - Soak a strip of cloth in the soapy solution. - Wipe the soapy cloth around the rim of the bowl. - Drag the cloth across the top of the bowl to create a soap film sealing the opening. - Step back and watch the bubble inflate with fog until it pops. /*******************************************************************************************************/ /* Links - Optional */ /*******************************************************************************************************/ ====Links==== Dry Ice Bubble - mr_JDog75: {{youtube>76CNkxizQuc?}}\\ 📄 Science Kids: [[https://www.sciencekids.co.nz/experiments/dryicebubble.html]]\\ /*******************************************************************************************************/ /* VARIATIONS - Optional */ /*******************************************************************************************************/ ====Variations==== * Try using a smaller cup or a much larger bowl to change bubble size. * Add food coloring to the bubble solution for a visual effect. * Use different soap-to-water ratios to see how it affects bubble growth. /*******************************************************************************************************/ /* SAFETY PRECAUTIONS - Required */ /*******************************************************************************************************/ ====Safety Precautions==== * Only adults should handle dry ice. * Always wear heat resistant gloves when touching dry ice to avoid skin burns. * Work in a well-ventilated space to prevent carbon dioxide buildup. * Students must not remove dry ice from the demonstration area. /*******************************************************************************************************/ /* QUESTIONS TO CONSIDER - Optional */ /*******************************************************************************************************/ ====Questions to Consider==== * Why does dry ice skip the liquid phase and turn directly into gas? * How does the soap film hold the gas inside the bubble? * How does temperature affect the speed at which dry ice sublimates? /*******************************************************************************************************/ /* DEMONSTRATION INFORMATION - Required */ /*******************************************************************************************************/ /* Complete information in the Demonstration Info box below, following instructions exactly. */