Even more elaborate than Museo del Niño [1], interactive educational opportunities can be found at Parque de las Ciencias Luis A. Ferré (Carr. 167, off Hwy. 22 in Bayamón, 787/740-6878, 787/740-6868, 787/740-6869, or 787/740-6871, Wed.–Fri. 9 a.m.–4 p.m., Sat.–Sun. and holidays 10 a.m.–6 p.m., ticket booth closes two hours before park closing, $5 adults, $3 children, $2.50 seniors 65 and older and those with disabilities; parking $1; planetarium $3 adults, $2 children).
Basically an amusement park devoted to science, it encompasses 37 acres and features an aerospace museum with NASA rockets, a natural-science museum, an art museum, a small zoo, a planetarium, an archaeology museum, a transportation museum, a lake with paddleboats, and food vendors selling hot dogs and pizza.
Links:
[1] http://www.moon.com/destinations/puerto-rico/san-juan/sights/old-san-juan/museums-and-galleries/museo-del-nino