[throwaway71271]

Not sure if 7 is old enough, I made this card "game" with my daughter when she was 10: https://punkx.org/4917/ which is not really a game but more like a puzzle, you have 54 small programs for a 4 bit made up computer (Richard Buckland's computer) and you have to interpret them in your head or with pen and paper. It's quite interesting to play with her when I change few instructions on a card. (you can also print it yourself on a4 paper)

Other interesting game are of course robot turtles (http://www.robotturtles.com/), but she might be too old for it.

And you might like Mark Rober's https://www.crunchlabs.com/

There is human resource machine that my daughter played when she was 8 or so (https://tomorrowcorporation.com/humanresourcemachine) which is a brilliant game.

Also all kinds of "crypto" books, from caesar's cipher to morse code books were very interesting