Mario Molina studied chemicals. He learned about bad chemicals in the air. The chemicals were hurting the environment. Mario Molina wanted to help protect Earth.
Photo Credit: (c) Ingram Publishing/SuperStock
In the Know
How New York’s Central Park Reuses Trees
National Love a Tree Day is May 16. It is … read more
In the Know
Women’s History Month
March is Women’s History Month. Do you know about these … read more
In the Know
Ellis Island
Ellis Island opened on January 1, 1892. What is Ellis … read more