Ahh I remember doing the volcano experiment when my kids were about your age give or take XD Great fun! We didn't do bottle rockets though (I did not trust the youngest to not lose an eye x_x).
Did you learn anything new from performing the experiments again? :D
I learned that when you put the vinegar and baking soda together and you put the rocket on top of the bottle it will fly because the vinegar and baking powder make air and the pressure will push the rocket to fly.
Nice XD I think there's a variation on it where you can make the whole bottle a rocket rather than a launch pad for the smaller rocket too.
Have you tried the Mentos and soft drink experiment yet?