There are 51 individual state units. This includes Washington DC.
Download the preview file to receive a complete unit on the state of Arizona. This will give you an idea of what the state units are like.
Each state thematic unit offers information about the following: history, Capital, flag, tree, bird, flower, size, location, climate, topagraphy, industry, natural resources, waterways
The following pages are also included - questions, word uncramble, spelling, state map, add your own information, answers