What can we do in Science museum

i think u need a ticket, but not sure if it is the same now.
there are lots of interesting things to see in the science museum,
if you are interested in science.
from my memory, they are interesting to every one, even to people who does not like science, there are lots of games, many little games.
i remember there is a boat competition wo watch,
a nail bed, a place to make bubbles ...