pyrotechny

"The metallurgy department at the university studies how to extract and refine metals for use in new alloys. "

"The factory's efficient manufacture of toys allowed them to sell many at a low price. "

"The pianist's virtuosic performance of the challenging concerto left the audience speechless. "

"The teacher featured teamwork as the most important skill for success in the group project. "

"The fireworks display used gunpowder to create colourful explosions. "

"The chemistry class focused on how different elements combine to form new substances. "

"The church held a celebration of the Eucharist, a Christian sacrament. "

"Commercial firework displays are commonly launched from boats or other vessels"

"Dazzled by the headlights of the lorry, the deer stopped in the middle of the street."

"The fireworks display was a spectacular. "

"Our town's annual harvest festival celebrates the local farmers and their crops. "

"an impressive movie"