Objective: to create "Invisible Ink"
Method: Using acidic based items, then applying heat.
The "invisible" part worked very well, don't ya think?
The Challenge: applying the heat.
The Challenge: applying the heat.
Attempt #1-blow dryer-it bombed.
Attempt #2-by candle flame-caused charcoal marks (can you guess what page it was?)
Attempt #3- hot burner-this did work, but took a long time to pull the picture out of the paper.
Attempt #2-by candle flame-caused charcoal marks (can you guess what page it was?)
Attempt #3- hot burner-this did work, but took a long time to pull the picture out of the paper.
Analyze Results: Lemon & O.J. worked best, vinegar failed.
Conclusion:
I think we will stick to the "white crayon" method of invisible ink...
easier, quicker, & more legible!
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