Science or tech after school activities for 5th grader

Hi!

I am searching for after school classes or activities for my 10 year old for the next school year. He is not athletic but interested in anything related to science, engineering, and tech, preferably not coding (we already have a class for that) but maybe something like robotics, ideally in a group setting and in person. We live in Albany so looking in the Berkeley area.

Would appreciate any ideas/suggestions.

Thanks!