Make Invisible Ink

Wouldn't it be cool to write and not be able to see what you wrote?

With this experiment you'll be able to write without seeing - at first anyway!

Need: one lemon, small soup or cereal bowl, water, toothpick or q tip, spoon, one sheet of paper (white).

Squeeze the lemon over the bowl. Once you have the juice, add about 3 drops of water to it and mix it up using a spoon.

Take the toothpick or q tip and dip it lightly into the liquid. Write something on the paper.

Once it has dried, take the paper and hold it over a light bulb.

Make sure the side you wrote on is nearest the light bulb and not facing you.

You should see the writing appear on the paper once it gets warm.

If you're using a sheet of computer paper, try folding it in half before writing on it.

Or use a sheet of white construction paper.

This is something elementary aged kids, up to 6th grade, will love to do as an in-class experiment.

Teachers can have the kids write their names.

Or have each child write the name of another classmate and write one word that compliments the child.

Example, Susie is instructed to write Tommy's name and one great thing about Tommy. She can write, "Cute".

Then she hands her paper over to Tommy who holds it up to the lamp.

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