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Science Experiment of the Week
266 - Orange Flash


Citrus Fruit Oil Flame Fire Lemon
From Robert Krampf's Science Education Company. To start receiving the
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This Week's Experiment - #266 Orange Flash

This week's experiment is sure to surprise you. It is simple, easy and quite dramatic. You will be using a candle, so be sure to get permission and have an adult around, just in case. You will need:

an orange (You can also use a lemon or other citrus fruit.)
a candle

The first thing to do is peel the orange. You do not have to peel the entire thing, but I suspect that once you try this you will want to. You can eat the inside as a snack while you are experimenting.

Place the candle into a holder and light it. Pick up a piece of the orange peel. Holding it near the flame, bend the peel and squeeze it. Be sure that the outside of the peel is facing towards the flame and you should get some very nice flashes and flares from the flame.

What is going on? The orange peel has oil glands which contain oil of orange. This oil gives the orange a lot of its smell, but it is also quite flammable. As you bend the orange peel, the orange oil squirts into the flame, producing a nice flash.

Orange oil is used as a flavoring, as a natural insecticide, to add fragrance to air fresheners, and in a variety of cleaning products. Lemons and grapefruits contain similar oils, which are quite useful and also make nice flashes.

From Robert Krampf's Science Education Company
PO Box 60982
Jacksonville, FL 32236-0982
904-388-6381
krampf@aol.com

To start receiving the Experiment of the Week, just send a blank E-mail to: krampf-subscribe@topica.com


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