> To play a violin, you rub the strings with a bow. The strings vibrate > and make the sounds. Can you make a string sing? You certainly can. When you play a stringed instrument, that's exactly...
Boom and bong
Tap a pencil against an empty box. It doesn't play a tune, but it does make a sound. One family of instruments makes sounds in the same way---you use something to hit, or strike, them. The...
Music to your ears
What is music? It's making sounds you like--- and putting the sounds together in different ways. You use the sounds to make a \"design" you can hear, the same way you use a pencil or crayons to make...
Making sound bounce
Sound waves bounce off hard surfaces such as walls and floors and ceilings. Here is a way you can prove this by making sound waves bounce around a corner. Materials - cardboard - cardboard tubes...
Hello… hello… hello
I met a man I could not see. But I know he lives not far from me Out past the lake, and up the hill, For when the wind and the birds are still, I stand alone and call \"COME OUT!" And down from the...
Sounds from moving things
Have you ever noticed a change in the \"whistle" a train makes as it rushes by? If you stand by the tracks while the train is passing, the sound gets higher and then lower as the train goes by you. ...
High and low
Zzzeee goes the tiny mosquito as it zips past your ear. HROOM growls a big truck as it rumbles by on the road. The sound the mosquito makes is much higher than the sound of the truck. Why are the...
Make a tin-can telephone
Materials > • hammer > > • nails (3 small) > > • thread (heavy duty--- > > 12 feet; 3.6 meters) > > • tin cans (2) This telephone doesn't need electricity to work. A piece of thread carries...
Sound gets around
A swimming fish seems to glide through the water without making a sound. But it doesn't swim as quietly as you think! Divers swimming underwater hear a loud crack when a large fish flips its tail and...
Now you hear it, now you don’t
A ticking clock sounds loud when you put your ear close to it. But as you walk away, the ticking gets softer and softer---until you can't hear the clock at all. Why does the sound get softer? The...
