On Wednesday room 9 and room 10 did a science experiment on sound waves.We had 5 groups to decide what experiment we wanted to do. Mrs Riley had some props we could use for our experiment called chicken full of cups. My group and I used a cotton bud cup with holes on the side, wool and a Popsicle stick. We got wool and the Popsicle stick and we put a whole in the cup and then put the wool through the hole. Then wet the wool and pulled on the string. It made weird sounds.
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