Thursday, May 12, 2011
Invisible Ink By Alec
I was trying to find out how the lemon juice reacts to the heat.The lemon juice is acidic and weakens paper.I was right that the lemon juice needed sunlight for 2 hours.When the paper has dryed you need to heat it under a candle or a flame so it turns pale brown and you can read it.The ingredients are lemon or lemon juice,sunlight or heat sauce,a cotten swab and paper.
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Room 7 I have enjoyed seeing the experiments you have been doing as part of your kitchen chemistry. Reactions have been caused by different processes. It is great predicting what might happen and then trying to see what does happen, and working out why.
ReplyDeleteLooks like lots of fun and learning happening in Room 7!