Fun Friday – Our favourite Sound Experiments and facts for kids

This week’s Fun Friday post is a round up of all our favourite sound experiments and facts. Hear it, make it, feel it and even see it… guaranteed for a weekend full of fun!

 Here are three of our favourite sound experiments…


1. Make Sound…

Make a spooky sound cup


We love this simple experiment to make a spooky sound cup… see what kind of sounds you can make with it.

Just click on this link to find out what to do…


2. Feel Sound…

All you need is a balloon and a radio
All you need is a balloon and a radio

All you need for this one is a balloon and a radio or other music player.

Blow up a balloon and tie it. Turn on the radio to a song with low base music. Hold the balloon between your two hands and hold it very
near the speaker of the radio.

What can you feel?

Change to a different radio station and see if the vibrations change.


3. See Sound…

For that extra "WOW"...
For that extra “WOW”…


This one never ceases to get a WOW from everyone, and for a change Dr. How is on the other side of the camera to show how it works … click on this link to check it out.


And here are five fun facts about sound…


photo credit: superUbO via photopin cc
photo credit: superUbO via photopin cc
  • Sound waves travel in water at a speed of nearly one mile a second, which is more than four times faster than sound travels through air!
  • Thunder is the sound made by lightning! Sound travels in air at a speed of about one mile in five seconds. If you count the seconds between seeing the lightning and hearing the thunder you can work out the distance from the source of the thunder! For example, if you count ten seconds between the lightning and the thunder then you can tell the storm is about two miles away!
  • An echo is made when sound waves you make bounce off a solid object and travel back to your ear.
  • Some mammals use echoes to help to navigate and to find food – this is called echolocation!
  • Bats use echolocation to fly and hunt at night; they send out high pitched squeaks and clicks almost constantly. These sounds are called untrasonic, they are too high for humans to hear. A bat can detect an object as small as a human hair using echolocation!


We love playing with sound in this house… hope you have some fun with it too


Science blogger and writer; Owner of Dr. How's Science Wows; Mother of three junior scientists who have taught me that to be a great scientist you need to look at life through the eyes of a child!

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