Marine Missions is a new iPad app from National Geographic. The free app features a series of educational missions for elementary school students to complete. As students complete the missions they learn a little bit about ocean life and marine conservation. For successfully completing missions students earn pieces to use to create their own marine creatures.
Students have the choice of using their fingers to tap and move things in the Marine Missions challenges or tilting their iPads to make things move. I tried it both ways and found the app to be much more responsive when I was in tilt mode than when I tried tapping and moving objects.