kidzpark
Home | FAQ | Contact Us | View Cart | Login / Register  


Kids Science Activities

Balloon as a Sound Amplifier
Materials Required
* Balloon
Method
  • Blow a balloon hard and tap it lightly near your ears. 
  • Hear the sound and compare the lightness of the action with the sound produced. 
What is Learnt
As the air molecules get closer and well packed inside the balloon they turn into a better conductor of sound than ordinary air and contribute to producing louder sounds.
Conclusion
* Even light tapping produces a loud sound to the ear. * When air is blown in it forces air molecules closer together that produces a loud sound.


Add to My Article | Refer this Article | Print this Article



Comments on this article
Lydia, OotyThursday, November 10, 2011
Pictures with sound effect would be better.

s revathy, coimbatoreMonday, August 29, 2011
I FEEL THAT A STEP BY STEP PICTURE INSTRUTION WOULD BE BETTER FOR THE CHILDREN

Write your Comments on this Article
Article Title Balloon as a Sound Amplifier
Your Name
Place of Residence
Your E-mail
Your Comment
 
Security Validation
Enter the characters in the image above
 
Kindergarten Activities
How I Played With Alphabets And Hints And Formed Words.
How I Learnt About Growing Molds
Effects of Color and Heat
Use Steam To Move My Pinwheel
How I Learnt How Boats Sink, Float And Topple.
An Orange fruit float and sink in water
How I Made Clouds And Rain In A Glass Box.
How I Made Healthy Sprouts For Breakfast.
Water and Pressure
How I Built My Strong And Beautiful Sand Castle
Jack and Jill
How I Learnt To Write Back To Front
How I Found The Part Of Tongue For Each Taste
Some object absorb water and some object does not absorb water
Make a Fish
Mickey Mouse with shapes
How I Learnt To Be Healthy By Fun In The Pool
Planetarium at your home
Inflating Balloon inside a Bottle
Simple light experiment for Kindergarten