Sound Off kit for 16 design teams

Sound Off Kit: Grades 6-12. Boost smartphone sound with everyday items.Design teams transform cardboard tubes into non electrical devices to amplify sound. Engage and excite students as they explore how sound waves are transmitted, reflected, and amplified by different shapes and materials. Teams modify designs and then compete to produce the best device to increase the volume and clarity of music or tones. Includes instructions. Caters for 16 teams.