(Well, except for full-frame flames like that at top left ... the light falls off as he’s moved away from the candle. For the set of images below, I used the flash at its full power—too ...

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 ...