a dry explosive substance used to propel projectiles from guns gunpowder was first used by the Chinese in fireworks.
discover
to find out, either by accident or by searching
I discovered a great new restaurant before it became popular.
search
to look for; to try to find
We spent three hours searching for the car keys before we could leave.
ordinary
normal; not special or different
Ancient scientists tried to turn ordinary substances into gold.
substance
a material; a solid, powder, liquid, or gas with particular properties
What kind of substances are in this paint?
scare
to frighten or fill with fear
In the past, people believed fireworks would scare evil spirits with their loud sound.
display
an exhibition or show
Firework-masters were well respected in ancient China for their skill in making amazing displays of light and sound.
festival
a group of shows that include art, acting, singing, and dancing
The wine festival is held year after year in France.
occasion
a special time or event
A birthday is an important occasion.
celebrate
to mark a special event or to mark success with happiness
Do you celebrate on New Year’s Eve?
Independence Day
a legal US holiday celebrating Declaration of Independence
In many countries, fireworks are used to celebrate national holidays, such as Independence Day in the US.
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