In science, a black-box investigation is a way of studying a system, object, or process without knowing (or directly observing) its internal workings. Instead, scientists treat the system like a "black box":

• Inputs are provided to the system.

• Outputs are measured.

• The relationship between inputs and outputs is analyzed.

From this, scientists build models, form hypotheses, or make predictions, even if the inner mechanisms remain hidden or too complex to observe directly.

Mystery Tube - Student Version

Mystery Tube - Teacher version