Where to take your kids. Good places from my own experienced, or recommended to me by sources whose tastes can be trusted

Museums

Experimentarium
www.experimentarium.ru (Russian), Butyrskaya ul. 46/2, Metro Savelovskaya. Physics experiments in entertaining you-can-touch-it format, setup for kids. Russian only but the place is very visual and you’ll easily find English speakers among public of the sort who visit it.

Zoology Museum of the Moscow State University
www.zmmu.msu.ru (Russian), Bolshaya Nikitskaya ulitsa 6. Very visual, no language skills required, popular and mostly geared for kids. Regular events for children of high school age.

Old cars
www.auto-retro-museum.ru (Russian), Rogozhsky val 9/2, Metro Ploshad Il’yicha. Unfortunately you can’t touch the exhibits and tours needs to be arranged.

While in the area you may also visit the Old Believers church
(see Eating and Non-material under My Moscow).

Old cars, airplanes, tanks etc. near Krasnogorsk
www.tmuseum.ru/en (English!). A few miles north-west from Moscow along Novo-Rizhskoye Shosse, bus from Metro Tushinkaya. For kids with fascination in the old military. An old fortified personnel carrier or tankette has been noticed going around the museum giving rides to children.

Tank museum in Lenino-Snegiri
ww2museums.com/article/9695/Lenino-Snegiri-Military-Historical-Museum.htm (English). The best thing about this open-air museum is that kids can crawl onto and into the tanks.

Pushkin Museum
Ostozhenka(?). They regularly have children’s programs.  Praised by numerous sources.

The Submarine
Yes, you can descent into a real submarine. Popular with adolescent boys and men who haven’t quite outgrown it. Metro Tushinksaya or Planernaya(?).

Paleontology Museum
www.paleo.ru  Another very visual museum that does not necessary require Russian. Profsoyuznaya ulitsa 123, between Metro Konkovo and Teply Stan, south-west of Moscow. Regular programs for children.