Mama's Minerals on San Mateo and Lomas offers fun classes for kids and adults. This weekend they are having a geology class for kids about gems, minerals and geological makeup. They have jewelry making classes and many other classes that might be of interest to homeschoolers. Here is the web address for the classes: http://mamasminerals.com/pages/Classes%2C-Events-%26-Parties.html#kids_classes
Here is the web address for Mama's Minerals: http://mamasminerals.com/

They are also having a giveaway for kids this month: http://mamasminerals.com/pages/August-Raffle%3A-Enter-to-Win!.html