Cambridge Science Festival Continues through Apr. 21

The ten-day-long Cambridge Science Festival continues until April 21 with activities throughout Cambridge and greater Boston, with too many events to list here. You can filter their online schedule of events by date, age (family/teens/adults), cost, various tags, venue, day of the week, time of day, or organizer — and then export your filtered events to your personal calendar. Some events require pre-registration or tickets, and most are free. Some random highlights from just the next few days: