For thousands of years, we have been using energy to communicate, so its critical to explore with our students that sounds come from vibrations, and there are ways to use those vibrations, or by manipulating light as codes (light signaling), that we can send messages to others. On Day 4, we explored the world of communication as in Star Wars, just as in real life, we need to communicate clearly over long distances, sometimes without others knowing what we are saying, so communication techniques take center stage at KSL. Whether they made their own spy communication device with light along with a form of morse code, or learned how to amplify, distort, and muffle sounds using other materials, our kids were engaged with forms of communication. Even using the sense of smell or taste can be forms of communication, when captured by a gadget.