/*******************************************************************************************************/
/* TITLE - Required                                                                                    */
/*******************************************************************************************************/

======Dry Ice Bubble Tower======


/*******************************************************************************************************/
/* GREY BOX INFORMATION - Required                                                                     */
/*******************************************************************************************************/
/* Leave this unchanged */

<WRAP right box>
**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:** 
</WRAP>


/*******************************************************************************************************/
/* SUMMARY - Required                                                                                  */
/*******************************************************************************************************/
/* Leave this unchanged */

====Summary====                   
{{$demo.summary}}


/*******************************************************************************************************/
/* PROCEDURE - Optional                                                                                */
/*******************************************************************************************************/

====Procedure====  
  - Put on cotton or insulated gloves before handling dry ice.
  - Add a few drops of food coloring to a transparent measuring cylinder.
  - Fill the cylinder halfway with warm water and add a squirt of dish soap.
  - Drop a small piece of dry ice into the cylinder.
  - Watch as bubbles rise and stack into a foamy tower that spills out.


/*******************************************************************************************************/
/* Links - Optional                                                                                    */
/*******************************************************************************************************/

====Links==== 
Dry Ice Soap Tower Bubbles - Yucky Science: 
{{youtube>308xx42zH2M?}}\\
📄 Dry Ice Bubble Tower - RonyesTech: [[https://www.ronyestech.com/2020/05/dry-ice-bubble-tower-dry-ice-experiments.html]]\\


/*******************************************************************************************************/
/* VARIATIONS - Optional                                                                               */
/*******************************************************************************************************/

====Variations====
  * Try different amounts of soap to see how it changes the height of the bubble tower.
  * Use different temperatures of water.
  * Use different container shapes (wide, tall, conical flask) and compare results.
  * Add multiple colors of food coloring for a rainbow bubble effect.


/*******************************************************************************************************/
/* SAFETY PRECAUTIONS - Required                                                                       */
/*******************************************************************************************************/

====Safety Precautions====
  * Always use adult supervision with dry ice.
  * Handle dry ice with gloves or tongs to avoid frostbite.
  * Keep dry ice out of the mouth - never ingest it.
  * Work in a ventilated space to prevent buildup of carbon dioxide gas.
  * Dispose of leftover liquid by pouring it safely down the sink once the dry ice is gone.


/*******************************************************************************************************/
/* QUESTIONS TO CONSIDER - Optional                                                                    */
/*******************************************************************************************************/

====Questions to Consider====
  * Why does the bubble tower form instead of just fog?
  * How does the amount of soap affect the bubbles produced?
  * What role does sublimation play in creating the fog inside the bubbles?
  * Would the experiment work the same with cold water instead of warm water?


/*******************************************************************************************************/
/* DEMONSTRATION INFORMATION - Required                                                                */
/*******************************************************************************************************/

/* Complete information in the Demonstration Info box below, following instructions exactly. */