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
Helping Planet Earth
April 22 is Earth Day. Let’s look at ways we … read more
In the Know
What Can You Do at a Library?
Libraries are places where you can go. You can find … read more
In the Know
Growing Duckling
Look at the mother duck. She is taking care of … read more