In 1945, an engineer named Percy Spencer was standing near a running radar device at Raytheon when he noticed something odd in his pocket. What did he discover that sparked a kitchen revolution? His pocket watch had stopped A chocolate bar had melted into goo His keys were too hot to touch His pen had burst and stained his shirt None In 1968, a 3M chemist named Spencer Silver was trying to invent a super-strong adhesive for aircraft. He failed — but his failure became a billion-dollar product. What did he accidentally create? Duct tape A glue strong enough to hold airplane wings A weak, reusable adhesive that peels off cleanly Liquid rubber cement None In 1928, bacteriologist Alexander Fleming returned from a two-week vacation to find his lab a mess. One contaminated petri dish changed medicine forever. What had grown on it? A mold that killed the bacteria around it A new strain of deadly bacteria Nothing — the dish was empty A harmless yeast None In the 1940s, Swiss engineer George de Mestral came home from a walk in the woods covered in burrs. Instead of just brushing them off, he studied one under a microscope — and invented what? The zipper Velcro Nylon stockings The safety pin None In 1905, an 11-year-old boy in San Francisco accidentally invented a beloved frozen treat. How did he do it? He dropped fruit juice into a snowbank He left a drink with a stir stick outside on a freezing night He froze juice in his mother's ice tray He mixed cream and sugar in a snowstorm None Stumper. In 1943, a naval engineer was developing springs to keep sensitive instruments steady on rough seas. He accidentally knocked one off a shelf — and instead of just falling, it did something that launched a classic toy. What happened? It bounced across the room like a ball It "walked" down a stack of books in a series of arcs It coiled around his arm It snapped flat and wouldn't move None Time's up
