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Re-light a candle by igniting the smoke with a flame

Suitable For

Grades 5 & 6



Time Required

 <12 Hours



What’s it about?

Amaze your friends with your stunning candle act. You can light the candle without touching the wick in the following science experiment:

Topics covered

Smoke, Carbon dioxide, Oxygen

What will I need?


How does it work?

This science experiment works because smoke contains a lot of the unburnt fuel. Smoke is generally seen from fires that are not burning very efficiently because it does not consume all of the fuel as it burns. Efficient fires do not produce smoke. Fire needs three things to burn: oxygen, a fuel source, and ignition (heat).

The smoke from the blown out candle in this experiment is fuel consisting of vaporized wax, and as it travels upwards it mixes with the oxygen in the air (two of the things necessary for things to burn). When you light the smoke with a match, you re-introduce the heat, which completes the three necessary parts of fire, and the candle is lit once again.

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Why not check out the full worksheet in one of our popular e-books?

This particular science project can be found in any of the following Experiland e-books:

Experiland e-books contain detailed steps, including illustrations, to complete the science projects from start to finish.

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A project introduction and background, complete listing of required materials, step-by-step instructions on how to carry out the project, why it works, learn more section, as well as a science glossary with all the relevant terms make up each of the all-inclusive science project worksheets in our e-books!

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