In this activity, students use measurement and area skills to learn about remote detection of wildfires from space. After detecting mock wildfires with mobile devices, students then study satellite-data visualizations to determine the start dates of actual California wildfires. Materials Mobile device(s) with pixelation app installed (see Management for more info) Paper (a variety of colors that contrast with the floor color) Masking Tape Scissors Meter stick Computer with internet access and N