Sound

Download this 31- slide PowerPoint about ‘Sound’. This is a great resource to help teach your class that sounds are made when objects vibrate, that vibrations are not always directly visible and that vibrations from sound sources have to travel to the ear through different materials. The PowerPoint includes information about the units of Mach, Hertz (Hz) and Decibel (dB) and is a great resource for teaching a KS2 Science ‘Sound’ topic.