Full Discloser: I bought this because I know the developer and wanted to support him. I didnt expect two first graders to really enjoy it being at the upper age limit of the game. My daughter 6yr just loves it. Maybe because its an app she doesnt have to have to ask for help with. It was well worth the $3 I spent for the time and enjoyment the kids have had; not to mention the educational value. She still is playing with it daily.
PLS_ about Sid's Science Fair