Sound is an integral part of music and a fascinating subject to explore. In a recent class, Y4 students delved into the world of sound and conducted a series of simple experiments to demonstrate how sound travels through the air in the form of waves.
The first experiment involved a tuning fork and a bowl of water. The students placed the tuning fork into the water and observed as the water jumped out of the bowl due to the movement of the tuning fork’s prongs. This was a visual representation of the vibrations generated by the tuning fork and the resulting waves in the water.
The second experiment involved stretching plastic wrap over a bowl and placing rice on top. When the tuning fork was brought near the rice, the grains began to jump. This was due to the vibrations generated by the tuning fork being transferred through the plastic wrap to the rice. The vibrations caused the rice to jump, demonstrating the propagation of sound waves.
Finally, the students placed a ping pong ball on a string and brought the tuning fork near the ball. The ball began to bounce off the tuning fork, again, due to the vibrations generated by the tuning fork causing the ball to move.
These simple experiments provided a hands-on demonstration of how sound travels through the air and the impact of vibrations on different materials. They were a great way for students to learn about the science of sound and how it is integral to the world of music.