1. Ask the adult you are working with to light the candle. 2. Watch the candle flame start out small and get bigger. Notice how some of the wax near the wick melts. 3. As the flame burns, the wax from ...

Check out the difference between these two flames. Trimmed wicks make the flame look clean and bright. Untrimmed wicks are a lot more likely to take on a weird mushroom-esque shape (see below ...

The wick was lit and would burn ... As the lamp had an open flame, it could only be used in place underground where it was known that there weren't dangerous gases. To us today it looks like ...