While schools around the US are considering phone bans, one educator at the Lawrence Livermore National Lab is finding innovative ways to use smartphones for students to do science. These sophisticated devices are full of sensors with the capability to measure things like health data and basic principles of physics. All over the world, young people are growing up with these tools at their fingertips. With the right guidance, the same tech that can track your daily steps and give driving directions can open a world of discovery. So, how can teachers and researchers leverage the smartphone age to get kids excited about science?