Mario Molina was born in Mexico. As a little boy he played with toy chemistry sets. Mario Molina became a chemist.
Photo Credit: Louis MONIER/Gamma-Rapho/Getty Images
In the Know
How to Stay Healthy
October 1 is Child Health Day. It’s a day to … read more
In the Know
New Olympic Sports
The Olympics take place this summer. They are in Paris, … read more
In the Know
Why Is Grass Wet in the Morning?
It didn’t rain last night. But the grass is wet. … read more