Invisible Ink
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Oxidation is when oxygen makes an atom lose electrons
Materials: Lemon juice, Brush, Paper, a Bowl, and some type of heater
Procedure
- Put the lemon juice in the bowl
- Dip the brush in the lemon juice, do not use too much
- Now just write your message on the paper
- To see your message just heat your paper when it is dry
Kids will learn about oxidation from this