Sound Waves

3rd and 4th graders have been working very hard on our new wave unit. The vocabulary is new and challenging. We are so excited about the enthusiasm they are showing and the effort they are putting into understanding each task. We have been talking about sound needing a "medium" or type of matter to travel through. Students created telephones using different types of cups and string to see what worked best. We also learned that without a solid, liquid or gas sound cannot travel. So fun!