Aug. 10 & 24. Bruce Sagan leads an acoustic jam session devoted to traditional music from Sweden and Norway. All instruments welcome, no experience necessary. 7:30–9:30 p.m., location TBA; email [email protected]. Free. 

Every Mon. Performances from up to 15 aspiring stand-up comics from around the state. Local comics emcee. Age 21 & up only. Free candy. 8–9:30 p.m., 208 S. First St. Free. (734) 996–8555.

Every Sun., Tues., & Wed. Runners of all abilities invited to join a run of 3–5 miles along varying routes from different locations. Rain or shine. Dozer Coffee (8 a.m. Sun. & 7 a.m. Tues.), 112 Jackson Plz., (734) 929–9022 & Fleet Feet (7 p.m. Wed.), 123 E. Liberty, (734) 769–5016. Free. fleetfeetsemichigan.com.

Every Tues.–Sun. All age 6 & up invited into the museum’s labs to use scientific tools and museum specimens. The newest program lets participants try out simulated snake senses to experience the world as if they were a snake. No live snakes. 11 a.m.–3 p.m., 1105 North University. Free. (734) 764–0478, ummnh.org.

Every Tues. All invited to play the classic word game, using the 5th-edition Scrabble dictionary. Bring your own set, if you like. 3:30–8 p.m., Arbor Brewing Company Corner Brewery, 720 Norris, Ypsi. Free. meetup.com/ann-arbor-scrabble-meetup. [email protected].

All invited to join Earth and Environmental Sciences professor Selena Smith to discuss the interdependencies between waterways and humans, explore water sampling trays to look for aquatic organisms, and take a short walk. Dress for the weather. 4:30 p.m., 1800 N. Dixboro Rd. Free; metered parking. (734) 647–7600, mbgna.umich.edu/events. 

Every Tues. All invited to play one of a selection of board games, assemble a puzzle, paint miniatures, or try a tabletop role-playing game, all in a friendly, welcoming atmosphere. Also, at 6 p.m., RPG One Shots, introductory games of different tabletop role-playing games perfect for beginners, finished after one session (see website for this week’s game, preregistration strongly encouraged at sylvanfactory.square.site). 5 p.m., 2459 W. Stadium. Free. (734) 929–5877, sylvanfactory.com.

Adults & teens invited to use straw, colorful paper, twine, and a wooden hoop to make these Polish decorations used to celebrate important life events like birthdays and holidays. 5–7 p.m., AADL Downtown, lower level program rm. Free. (734) 327–4200.

All invited to use analog tools to create a 2-color design for a 2026 calendar and print it with the lab’s Risograph duplicator, a digital screen printer similar to a photocopier. 5–7 p.m., AADL Downtown, Secret Lab. Free. (734) 327–4200.

Every Tues. Moderate-paced ride, 20 to 30 miles, along the less-traveled roads west and north of Chelsea. See aabts.org for weather cancelations or delays. 6 p.m. sharp, meet at Aberdeen Bike and Outdoors, 1101 Main, Chelsea. Start location occasionally changes. Free. (734) 662–0205.

The Lakehouse Bakery (Chelsea) owner Keegan Rodgers hosts a hands-on introduction to making great tomato sauce and finding other uses for the abundance of tomatoes from your garden or local markets. Tasting. 6–7 p.m., AADL Malletts Creek. Free. (734) 327–4200.

Every Tues. & Thurs. All invited to play a low-contact version of rugby. Beginners welcome. 6–7:30 p.m., Riverside Park, 1000 Canal. Free. [email protected].

Every Sun.–Thurs. (different times). All invited to work on their knitting, crochet, weaving, and embroidery projects. 1–3 p.m. (Sun.) & 6–8 p.m. (Mon.–Thurs.), 401 N. Fourth Ave. Free. (734) 780–7867.