A weekly workshop introduces science to children ages 6 and younger with a fun experiment. This month's classes: Shadow Play (March 3, 5 & 7); Centripetal Force (March 10, 12 & 14); Rainbow Science (March 17, 19 & 21); The Science of Magic Sand (March 24, 26 & 28); and Food Discoveries sponsored by Whole Foods Market (March 31; April 2 & 4). Enjoy free Mugs Cafe coffee at each Wiggle Worms! Programs are held: 10 a.m. Tue. & Sat. and 3:30 p.m. Thu.