A Mom and a Family of Men!

Thursday, October 22, 2009

Spooky Science #5 - Secret Messages

Want to make a secret message?

Well, this is how...

What do you need?

*Typing paper cut into little slips of paper
*Lemon juice, onion juice, or vinegar in a small bowl
*Large glass bowl with water in it.

What do you do?

Gather all your items together on a safe surface. We use an old art board for out messy stuff.


Use the Q-tips dipped in your choice of liquid, we used lemon juice, and write your secret message on the paper.


Now very CAREFULLY move your paper back and forth over your candle flame and watch your message appear!





My boys loved this!


And be ready...


for FIRE! Have that large glass bowl of water HANDY! Tell them beforehand to put the burning paper in the water if it has a flame.


Why does it work?

When you put the invisible "ink" on your paper those areas of the paper under go a chemical change and become similar to cellophane. These areas now have a lower ignition temperature and will burn before the "uninked" higher ignition areas of the paper.


Mica said...

I love your kids expressions. Oh and that water thing was cool!!! I will have to try that one out. Thanks also for popping over and leaving me your sweet comments. Maybe you and your boy's can do the corn husk dolls...they can make boy ones....If you do, I hope to see them posted sometime!!! Have a great weekend! Mica

Jenn said...

Very cool!

Heather the Mama Duk said...

That's awesome :)

Britwife said...

Oh, your cute little guys are twins in these pictures! I love that! Love the expressions. We would've burned the house down, unfortunately. ;)

Spesamor Academy said...

My brothers and I tried this when we were kids. Only my mom wouldn't let us use a candle, so we used a light bulb, and it never worked. We always thought it was a scurvy trick, but now I'm thinking the light bulb just didn't produce enough heat?

Mama Teaching 2 said...

We also tried the lightbulb and it didn't work for us. You have to walk a on the dangerous side, ha ha.

Beyond Blessed said...

We read about this and Justin wanted to try it! I think we will, now that I see you did it without burning the house down!!
We were doing fingerprint science and he got all into being a super spy...

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