science museum; science center
A facility with interactive exhibits and educational displays about science and technology. Often distinguished from a 科学博物館 (science museum with historical/collection focus).
See also: 科学博物館 (かがくはくぶつかん)
I took my child to the science museum on the weekend.
This science center also has a planetarium.
博物館 is the broad term for any museum, whereas 科学館 is a specialized science museum or science center.
Compound of 科学 (science) + 館 (hall, building). A straightforward modern coinage.