Well I think science fairs in general can be confusing, as to where to draw the line with parental involvement.
Some schools seem better than others in making a statement about what parents should or should not do...
For younger kids of course it makes sense to have lots of involvement...

A lot of projects are like this, frankly, but I did find a good science fair handbook that helps draw the child through most of the process via question and answer, so that is helpful for me to keep my big nose out. smile