Do you remember in science class being divided into lab groups and being handed a black box? Your group’s task was to examine the box, shaking it, tossing it in the air, smelling it, everything short of opening it, to figure out what was inside. The lab’s purpose was to strengthen your powers of observation and emphasize that not everything in science is instantly obvious or easily interpreted. Indeed sometimes all we have with which to draw conclusions is the output itself.
In science a black box is “a device, system or object which can be viewed solely in terms of its input, output and transfer characteristics without any knowledge of its internal workings.”
Good luck and remember that with a black box all you can do is guess how it works based on what happens when you do something to it (input) and what occurs as a result of that (output).