The group investigated ways to show sound in action by placing uncooked rice on top of drums and hitting the drum with different objects. The class found that the harder we hit the drum, the more the rice moved.
This week, the class investigated whether different objects make different sounds, and found that faster vibrations create a higher pitch and slower vibrations create a low pitch.
Ellie said "It was really fun using different objects. I found out the pitch is changed because of the vibrations travelling through the air."
Well done Year 4!