Stephanie Kwolek was a wonderful scientist who loved chemistry and inventing new things! She spent her days mixing different liquids together in a laboratory to see what would happen. One day, she mixed a cloudy, watery liquid and spun it into a thread. She discovered that this new material was five times stronger than steel, even though it was super light!
Stephanie named her amazing new material Kevlar! Her super strong invention is used to make special vests that protect police officers and soldiers from getting hurt. It is also used to make strong ropes, airplanes, and even safe helmets for riding bikes. Her brilliant scientific discovery has saved thousands of lives and keeps us safe every day!
