Acids, Bases and pH - Device-Based Scavenger Hunt Activity. This activity is the coolest thing I've created and your kids are going to love it, mine do. Think of a scavenger hunt, then add devices (Smartphones, Chromebooks, Laptops, or Tablets), engaged students, and learning through assessment and you have this resource.Quick Disclaimer. In order to use this activity, your classroom must have at least 1 device per 3 students. Smartphones, Chromebooks, Laptops, and Tablets will all work perfectl