Problem: Randomly generate a fact.

Random fact: if a body of water loses all water then that body of water does not exist any more

Problem: Randomly generate a fact.

Random fact: friction acts to counter the motion of two objects when their surfaces are touching

Problem: Randomly generate a fact.

Random fact: a mirror is used for reflecting light

Problem: Randomly generate a fact.

Random fact:
an incandescent light bulb converts electricity into light by sending electricity through a filament