The Science Journal app taps into all the various sensors in a mobile device or connected Arduino tools to record data and test hypotheses about the physical environment.

In addition to taking in all that data, the app also acts as a notebook where students or generally curious people can set up experiments, run trials, record data and test their predictions. The app can create visualizations for data coming in from a device's accelerometer, light sensor and microphone to measure light, motion and sound, just for starters.

Google has been supporting science education for a few years now through initiatives like its Google Science Fairs, where we'd expect this app to see use in years to come.