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======Floating Paper Clip======


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**Materials: **{{$demo.materials_description}}\\
**Difficulty: **{{$demo.difficulty_description}}\\
**Safety: **{{$demo.safety_description}}\\
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**Categories:** {{$demo.categories}}
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**Alternative titles:**
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/* SUMMARY - Required                                                                                  */
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====Summary====                   
{{$demo.summary}}


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/* PROCEDURE - Optional                                                                                */
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====Procedure====  
  - Fill a bowl with clean water.  
  - Attempt to place a paperclip on the surface, notice that it sinks.  
  - Tear a small piece of tissue paper and place it on the water’s surface.  
  - Carefully set a dry paperclip flat on top of the tissue, avoiding direct contact with the water.  
  - Push down the tissue until it sinks.
  - Adding a drop of detergent will cause the paperclip to sink because the surface tension has been broken.


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/* Links - Optional                                                                                    */
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====Links==== 
Floating Paper Clip (Surface tension) Experiment - Kids Fun Science: 
{{youtube>_bsHMVuPSGs?}}\\
📄🎞️ Make a paperclip float - Science Bob: [[https://sciencebob.com/make-a-paperclip-float/]]\\


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/* VARIATIONS - Optional                                                                               */
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====Variations====
 * Test how many paperclips the water surface can hold before it breaks.  
  * Try bending the paperclip into different shapes to see if it changes floating ability.  
  * Compare water to other liquids (such as milk, juice, or soda) to test which has stronger surface tension.


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====Safety Precautions====
None


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====Questions to Consider====
  * Why does the paperclip sink when placed directly into the water?  
  * How does surface tension allow the paperclip to stay on top of the water?  
  * Why does the tissue paper sink while the paperclip remains floating?  
  * Which liquids seem to have the strongest surface tension?  
  * How do insects like water striders use surface tension in their environment?


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/* DEMONSTRATION INFORMATION - Required                                                                */
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/* Complete information in the Demonstration Info box below, following instructions exactly. */