May 22, 2019
We know that teachers are always looking for new ways to demonstrate sound and waves in their classroom. How do you teach something you can’t see or touch? We have some great ideas.
Read on to hear what our customers are saying about some of their favorite EI sound and waves teaching tools. If you have a favorite Educational Innovations product, we invite you to send us a comment below. We’d love to share your review with your fellow teachers and science lovers.
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June 9, 2012
by: Michelle Bertke
Sound can be a difficult concept to portray because the sound waves cannot be seen or touched. Luckily, there are several at home experiments that demonstrate the properties of sound waves.
Water tank to show ‘Sound Waves’
You can use a fish tank half filled with water to give a visual demonstration of ‘sound waves’. Water is a perfect medium to show the propagation of waves. This demonstrates how sound waves travel though the air. There are two ways to display this activity. One way is to simply press your hands onto the top of the water and allow the waves to be made by the pressure of your hand. This allows students to see how waves travel though a medium. You can also use this to point out the aspects of a wave such as frequency and amplitude. Another way to show waves is to place a speaker next to the tank and allow the sound to produce the waves. This can show that sound is a form of pressure just like your hand. Read the rest of this entry »