Make sure there is always adult supervision when children are lighting fireworks. Read the directions and warning labels when you're purchasing the fireworks, and also read the instructions when you start lighting the fireworks. If a device is not marked with the contents, directions and a warning label, do not light it. Buy fireworks that are appropriate for the age of the child. Read the label and use common sense.
Sparklers are one of the most hazardous types of fireworks.
They are almost hot enough to melt gold, so burnt fingers or hands are common occurrences. There is also the potential for a young child to wave a sparkler around and stick it in the eye of another child or poke themselves. Understand fireworks fuses. Many people believe that fuses burn for a long time, but in truth, many explode three to six seconds after being lighted. Good locations to light fireworks are large, flat surfaces away from homes or buildings.