Question

While writing in class your pen stops working how will you proceed scientifically to find out why this has happened? list all possible reasons (hypothesi) you can think of and state how you will proceed to verify or disprove each one

Answer 1

Answer:

There can be many reasons why a pen may stop working all of a sudden. It can be some blockage caused such as grease , fiber buildup , etc, that stops the ink flow , or a leak somewhere interrupting the ability of ink to flow to the tip.

In many cases , the heat will melt any gummed up ink near the tip and get the pen working again. So, hold the tip of the pen onto some flame for few seconds to make it work again.