A firecracker converts chemical energy into sound.
Chemical energy energy released as a result of chemical reactions.
Firecrackers go off as a result of chemical reactions taking place.
What is happening inside a firecracker as it starts to go off?
(1) separation
(2) explosion
(3) adding heat
(4) chemical reaction
(5) It remains dormant
(6) wavelengths and photons
(7) uncontrolled
(8) fusion