Make a Duck Call

Experiments

What You Need:

Method:
Conclusion:

The little triangle or arrow shape that you created when you cut the straw forces the two pieces of the point to vibrate very fast against each other when you blow through the straw. The vibrations from your breath going through the straw create the strange duck-like sound. When you add more length to the straw, the sound gets muffled and creates a new sound.