Room one has
a problem it was the sound. We learnt about sound waves. We learnt about
vibration. Then we did the experiments to find out the materials that blocked
the sound. We used rubber, tissue, foam,cardboard. We made some interesting ear
muffs. We tried and tried. Then we done
it. The ear muffs was the coolest, most exciting thing in the whole universe.
By Hudsyn
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