Bubble Experiment

By Kate Fraser on May 21, 2015

Perkins School for the Blind Secondary school student Paige Nason shares her science fair project.

The reason why I picked this bubble experiment is because it looked interesting and fun. I thought it might be cool to see which bubbles would be better for my nieces and nephews to play with and you can never be too old to play with bubbles.

 
When people come to my table (at the science fair) I want them to be able to see the difference between the bubble solutions and which solution worked the best. Then maybe they can go home and make bubbles for themselves or their children.
 
When people come to my table they can blow bubbles to see which ones last the longest. To make it accessible for someone who's visually impaired or blind I will have plastic balls or marbles that would look and feel like a bubble. I will also make bubbles on the PIAF paper. ( paper that creates raised line tactile images)
 

paige blowing bubbles

Here are some vocabulary words that will help you understand my project.
  • Glycerin is a colorless, odorless, viscous liquid that is widely used.
  • Viscous is a thick, sticky consistency between solid and liquid having a high viscosity.  For example:  "viscous lava"
  • Store bought bubble solution is made with dishwashing liquid or some type of soap, a polymer of some sort and water.
  • Polymer is a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together, e.g. many synthetic organic materials used as plastics and resins.

Preparation:

In preparation to carry out this experiment,  I asked a  Scientific question:
"Which bubbles work better: the bubbles you buy in the store or bubbles you make with glycerin?"
 
And made a Hypothesis:
My hypothesis is that the glycerin solution will make better bubbles than the store bought solution.
 

Materials

  • student testing bubble experimentApron
  • Tray
  • Glasses
  • Glass mason jars with lids
  • Measuring cups and spoons
  • Distilled Water
  • Liquid dishwashing soap
  • Small bottle of glycerin
  • Pipette
  • Bucket
  • Graduated cylinder
  • Funnel
  • Straws

Procedure

  1. Gather the equipment on to work tray.
  2. In a medium size bucket:
  • Measure glycerin with graduated cylinder 100ml
  • Measure the water 480ml
  • Measure the dish soup 80 ml
  1. Mix it together with the stirring rod.
  2. Store the bubbles in mason jar.
  3. Have fun blowing bubbles!!!
student demonstrating bubble blowing

Data:

Store bought bubble solution Size of bubbles:  4 inches across Length of time lasted:  13 sec   Bubble solution made with 15 ml glycerin Size of bubbles:  3 inch Length of time lasted:  14.5 sec   Bubble solution made with 100 ml glycerin Size of bubbles:  5.5 inch Length of time lasted:  34.4sec

Conclusion:

Adding more glycerin it made a bigger diameter and the bubbles lasted longer.  

Variations

I added 100ml of glycerin and the bubbles were bigger and lasted longer.  They felt stronger. The bubbles even bounced. Originally I added 15ml of glycerin and the bubbles were small and popped really quick. I experimented with a variety of ways to blow bubbles. To blow bubbles I used bendy straws, pipettes, small funnels, and big funnels.  

NGSS Standards:

HS-PS1-3.  Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
 
bubbles collage

 

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