Hopefully the beautiful weather sticks around until Sunday evening as the City of Cambridge has plenty going on for families.

Any of your kids fancy themselves to be a future Einstein? If so, stop by the MIT Museum this weekend for the last few days of the Cambridge Science Festival (ends Sunday). For those age 12 and up, bring a team of friends and join in the MIT Museum Puzzle Hunt. Or if Robots are far more interesting to your budding genius, attend the iRobot demo and learn about how robots can help change the world.

Also on Saturday the Boston Breakers will be taking on the Chicago Red Stars at Harvard Stadium at 6PM. Get the fam geared up to watch these Women’s Professional Soccer teams in one of the city’s most beautiful and historic stadiums (learn more about Boston’s soccer history and Harvard Stadium in The Die-Hard Sports Fan’s Guide to Boston)–bring cushions as the “seats” aren’t so comfy. [And while you’re at it, go to the Boston Baby/Wheelock Family Theatre Mother’s Day Tea Party to be entered to win 4 Breakers tickets for later in the season.]

On Sunday (12PM-6PM), Harvard Square will be hosting the 27th Annual MayFair (with many of the activity proceeds going to various charities). With concerts and entertainment taking over the streets, hot air balloon rides, Roaming Railroad train rides, a charity hair-cut-a-thon, an entire street devoted to chalk art, plus a few Beer Gardens for the ‘rents, the festival will be a treat for the whole family.

As always, pack your copy of Boston Baby in the diaper bag for helpful information on other stops in the Cambridge area, from Magic Beans and Full Moon (playspace included so parents can relax and enjoy their meal!) on Huron Ave to the Harvard Coop and the Harvard Museum of Natural History in Harvard Square.