Valentine's Science: Invisible Ink Love Notes

*As featured on KUTV2 Fresh Living

What you'll need:
Paper
Lemon juice
Q-tips
A heat source

Here's how you do it:
1. Put a small amount of lemon juice into a cup.
2. Dip your Q-tip into the lemon juice.
3. Draw or write a message to your sweetie using the lemon juice on the end of your Q-tip.
4. Allow your love note to dry for at least 20 minutes.
5. Apply heat.  On the show, our director Annika used a heat gun, but you can try any heat source!  See if it works better in the oven, next to a candle, or with the high setting on your hair dryer!  Let us know how it works for you.

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