The question is How Many Are BOUNCING!? Yes there are 6, but only 5 of them are BOUNCING so the makers didn't get it wrong, pay attention to the question:)
6
i think its 6
The bouncing of light is the reflecting.
Bouncing Boy was created in 1961.
Bouncing Cats was created in 2010.
Heat.
Bouncing ball was created in 1925.
Barnes Wallis was the inventor of the 'bouncing bomb'.
The duration of Bouncing Cats is 1.25 hours.
Bouncing can tear muscle fibers
Bouncing can tear muscle fibers