In this activity, learners build unique sound enhancing inventions with items from around the house to amplify sound from their smart phone's speakers. Explore sound, make observations, and practice creative problem-solving skills all while making something that will be relevant and useful to your daily life. Activity includes step-by-step instructions with visual aids and a "what's the science" section that explains the science behind the activity. This activity uses low cost materials and can be done at home. This activity requires a smartphone with working speakers.