Learning breaststroke 

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How does sound travel?

We have been busy in science this afternoon! Firstly, we conducted an experiment today to see observe how slowly sound travels compared to light. We put flour into a balloon and tied it. Then one of our group went to the other side of the field and popped the ballon. We noticed that we saw the flour escape before we heard the popping sound. We leant that sound vibrates air particles and they compress together to transport the sound through the air to our ears. We planned a short presentation to explain how sound travels through the air to show to the class.