Students in grades 6 to 8 build a foil-lined cardboard enclosure, place a cell phone inside, and use a second phone to attempt calls, texts, and Wi-Fi connections while the lid is closed. The faraday cage lab sheet captures results in a three-column observations table, comparing what happens inside versus outside the cage for each signal type, then closes with reflection questions that ask students to explain the science behind what they observed and name real-world applications.

This experiment fits naturally into an electromagnetism or physics unit study and works as a standalone hands-on lesson when you need something concrete to anchor abstract concepts like electromagnetic shielding. Completing the sheet demonstrates that a student can design a controlled test, record comparative data, and draw a conclusion grounded in evidence, skills that build directly toward more formal lab report writing.