TLC and the website HowStuffWorks.com has an interesting section on Rock and Mineral Activities for Kids. You can learn how to make paint from rocks (my favorite) and how to make a crystal garden. Parental assistance is necessary due to some of the ingredients. There are activities that both girls and boys will enjoy.
Kids like rocks! Use their innate interests to make homeschooling fun.
Because as you know, fun learning is forever learning!