On Tuesday Y4 did lesson about sound and vibration. We had to write eight different things we did. First Everyone put their hand against their throat and said hello and our throat vibrated! It was awesome next I used the symbols I shaked it really hard and the bells on it vibrated. Next I pulled the Guitar string and it vibrated again and again.Next I used the balloons someone held it against their ear the other spoke as they spoke it vibrated through the balloon. Then, I used the tuning fork in water! We banged the tuning fork on the table and put it in the water. The water fizzed then it vibrated my hand and the water. After, I did the Rice drum it was cool. I banged so it vibrated and the rice flew of the drum. Finally I did the String Cups someone held one side and talked the other put it against their ear it vibrated the string it was awesome!