1. Light the candle and put the jar over it.
2. Count how long it takes for the flame to go out.
3. Then, hold the jar over the lit lighter until the flame goes out, and quickly put the jar (open side down) on the table.
4. Re-light the candle and quickly put the jar over it. The candle will go out immediately because there is very little oxygen in the jar. The lighter used up the oxygen in step 3.
Submitted by Peggy
