I made a little house out of a cardboard box and some sponges, and I put a sensor board on the roof. Then I made a little scene in the scratch project that reacts to the light sensor on the house. When it sees light, it makes the sun rise. I also added a battery that charges up depending on how bright the sun is. What else could you make that uses the light sensor? There's more information about the scratch sensor board here: http://info.scratch.mit.edu/Sensor_Boards
