have you considered making up your own tabletop RPG?
Kids love "make believe", being heroes, and playing with their parents: just make up your own story, give them some hit points and dice, then invent some checks as you go on.
It's good for their creativity, and you can sprinkle science-y concepts here and there (levers, archimede's principle, solving small puzzles).
I've been doing it with my kids, and they seem to have enjoyed it a lot, and I did more than them, I think :)
Kids love "make believe", being heroes, and playing with their parents: just make up your own story, give them some hit points and dice, then invent some checks as you go on.
It's good for their creativity, and you can sprinkle science-y concepts here and there (levers, archimede's principle, solving small puzzles).
I've been doing it with my kids, and they seem to have enjoyed it a lot, and I did more than them, I think :)