That's kind of insane. The most I'd think a 14 year old would be interested in is learning some browser related tricks (inspecting requests, elements, etc). On the technical side of things, unix utilities like ping / nano would be a good bet.
For day to day related work, just show how you decide what to work on? Maybe go through an instance of investigating a task?
For day to day related work, just show how you decide what to work on? Maybe go through an instance of investigating a task?