I tend to think that the science projects in Kyron's classroom were done by other students in his class. I also tend to think that Kyron's class were given a few options on what they could do their project on. For example, maybe they spent a month on frogs as science cirriculum, so frogs was an option for the science projects. JMO
True, but did they then group them by subjects? That would be why he would go look at the exhibits on electricity.