If you are looking for resources to support teaching and learning in the Social Sciences area, then Essential Resources is a great place to start. As well as a Curriculum Planning Made Easy resource (this covers Social Science as well as Science and Technology), there are other resources here that address curriculum topics such as how societies work and how people can participate as critical, informed and responsible citizens.
Resources available here include some concerned with sustainable living and environmental education. Some encourage inquiry learning and thoughtful discussion. There are connections between the social sciences and statistics, literacy, and current issues. Several resources focus on festivals from around the world. Take your pick.