This article describes a 5E lesson focused on the exploration of sound and sound waves. Many opportunities for hands-on investigations, discourse, and the use of technology are integrated into the lesson. Investigations follow where students talk and record their thinking both individually and collaboratively. Students use PhET wave simulation models to help them develop their understanding of waves and the Twisted Wave app to understand wavelength and amplitude. Detailed supporting documents are provided, which include teachers questions to guide the discussions.