After some hemming and hawing, Holly declared that she wanted to do a volcano project, complete with baking soda eruption. We hit the library and the internet and read all about volcanoes. Then Ronnie's portion of the project came up - to actually build the model. I think it turned out rather good for her first project.
The other students at the school had some very interesting projects - biology, chemistry, and physics were all present. One student had a DNA project and extracted DNA from strawberries at the fair - so cool! Another student had a bicycle-powered light bulb and back up battery cells that you could charge with your "extra" electrical output. I swear kids these days are way too smart! And Holly held her own, answering questions about her research on volcanoes and making the model erupt for her class. I could tell Holly was really proud to show her teacher and class what she learned.