MEDMYST is a collection of games to learn Science.
Some of the games are also available in Spanish:
http://webadventures.rice.edu/stu/Games/Espanol.html
Some games have mobile applications:
http://webadventures.rice.edu/stu/Games/Mobile-Applications/Germ-Blaster/
"MedMyst was a wonderful experience. Especially when you're trying to pursue a medical career.