Buzzing Hornets

Sound is everywhere. It can travel through solids, liquids, and gases, but it does so at different speeds. It can rustle through trees at 770 MPH (milRead More…

Harmonicas

Your voice is a vibration, and you can feel it when you place a hand on your throat when you speak. As long as there are molecules around, sound will Read More…

Seeing Sound Waves

This section is actually a collection of the experiments that build on each other.  We’ll be playing with sound waves, and the older students will coRead More…

Humming Balloon

You can easily make a humming (or screaming!) balloon by inserting a small hexnut into a balloon and inflating. You can also try pennies, washers, andRead More…

Good Old Telephone

This is the experiment that all kids know about… if you haven’t done this one already, put it on your list of fun things to do. (See the tips & Read More…

What is Frequency?

In this experiment you will be adjusting the length of string of a pendulum until you get a pendulum that has a frequency of .5 Hz, 1 Hz and 2 Hz. RemRead More…

Ear Tricks

Think of your ears as ‘sound antennas’.  There’s a reason you have TWO of these – and that’s what this experiment is all about.  You can use any noiRead More…