I'm trying to remember from when we did it at the beginning of the year. Here are some:
*Get different kinds of chocolate (dark, milk, white, etc...) and do a taste-testing activity, then graph the results.
*I have a great non-fiction book about how chocolate is made - but I forget the author. There is also a video that tells about it. It's great for bringing non-fiction and fiction together.
That's all I can remember for now.....my brain is starting to shut-down for the summer.....