Build your own Wave Machine - this is a great physics demonstration for the classroom or at home as a brilliant science experiment for kids.
This science demonstration video is one of over 8,000 free teaching resources available for from the National STEM Centre following registration. Register here https://www.nationalstemcentre.org.uk/signup
The Wave Machine is also a fun and useful tool for the science classroom as it can be used to demonstrate transverse wave motion and is a great way of demonstrating how light waves change when moving through different media such as glass and air.
If you like this demonstration video please tell us your thoughts on the National STEM Centre webpage http://www.nationalstemcentre.org.uk/elibrary/resource/2096/wave-machine