Learning Zone from UCAR

UCAR Center for Science Education

UCAR is part of MetED which is produced by NCAR in Boulder, Colorado. MetEd produces online tutorials and courses for the geoscience community. The Learning Zone is very good geoscience instruction for grades K-12. 
You have to register to use UCAR - but there is no cost.

About NCAR:
This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by the National Science Foundation and managed by the University Corporation for Atmospheric Research.


https://scied.ucar.edu/resources

Under Games and Simulations:
The UCAR Center for Science Education has a collection of games and simulations related to weather, climate, atmospheric science, and space weather education. Test your knowledge with one of our games or gain a deeper understanding of earth science through a simulation.

 https://scied.ucar.edu/games