What Makes Sound?

From this video, children can learn more about the concept of sound. They will learn that sound is a type of energy and that it is caused by vibrations. These vibrations travel trough the air until they reach our ears, allowing us to hear. It would be interesting for children to find out that musical instruments use these vibrations to create beautiful sounds, or that harder objects vibrate better and produce a louder sound. The simple experiments shown in the video are very easy to recreate at home or in the classrom, which will help children to grasp the topic faster.