A Secret Letter with Invisible Ink
 Introduction:
  Developing recipes for invisible ink is the task of scientists. Putting it to use is generally the work of spies and others in pursuit of nefarious deeds. It's the work of the sleuth to figure it all out, at least that's the way most good mystery novels work! But invisible ink has also had its place in history.

  Artifacts from World War II turn up quite frequently, but a certain postcard turned up a few years ago which caught everyone's interest. The postcard had been sent out of Poland during the occupation. There wasn't anything of interest to the Germans on the postcard, or so they thought.

Invisible ink had made this possible to send and receive secret messages for many years, but what is invisible ink? And how does it work?

 
 
 Material and step by step instructions:
In this project you will research to find a simple formula for invisible ink. You will also use different methods for making and revealing invisible messages. Invisible ink is a fun start to get familiar with chemistry and chemical changes.
Details of this project:
More details or support on this project is available for the members of itisfast.com. Since research on this subject has a long history, you might also be able to find good books about it in your local library or find some information on the internet. MiniScience.com also has a kit for invisible ink.
 
 
 
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