We know that sound travels through gases because we can hear people when they speak. We know it travels through liquids, because we can hear sounds underwater when we are in the swimming pool. We also know it travels through solids, because we can hear the pencil sharpener from the computer lab through our classroom wall.
Today we did an experiment to see whether sound travels best through gases or solids. Grade 3’s, can you explain;
– How we did the experiment?
– What did you discover?
– What does this experiment prove?