Elise Schiller Book Signing — In 2014, author Elise Schiller’s 33-year-old daughter, Giana Natali, died of a heroin overdose, while being treated at a facility in Boulder. Schiller’s book, “Even If Your Heart Would Listen: Losing My Daughter to Heroin” is a meditation on a family’s grief, an intimate portrayal of a mother-daughter bond and an examination of the opioid epidemic; 1 p.m., Barnes and Noble, 2999 Pearl St., Boulder; free.
CU Wizards! “REDOX, Reuse, Recharge: Batteries!” — Batteries! Susan Henrickson explains the chemistry involved in making a battery in this all new free STEM show for K-12 students and families. An energetic, fun show all about batteries with the gift of learning included. CU Wizards shows are free science shows geared for young audiences, families and science enthusiasts; 9:30 a.m. Saturday, Sept. 28, University of Colorado Boulder, Cristol Chemistry Hall 140, Boulder; free; 303-492-5011.
Green Home Tour— Join the Colorado Green Building Guild’s 5th annual Boulder Green Home Tour. This self-guided tour offers a view into eight of Boulder and the surrounding area’s greenest homes, and the opportunity to meet the architects, designers and homeowners. The tour starts at ReSource Central and culminates in an after party at Roadhouse Depot; 10 a.m. Saturday, Sept. 28, ReSource Central, 6400 Arapahoe Ave., Boulder; $20-$22; 720-435-0770.
Boulder Film and Brew Festival — The second Boulder Film and Brew Festival celebrates the craft of independent film focused on comedy and the many emerging industries in Colorado and around the country. Be entertained while enjoying some beer and popcorn; noon, Saturday, Sept. 28, Asher Brewing Company / Brewery & Taproom, 4699 Nautilus Court South 104, Boulder; $30.
“Sweet Home Monteverde” documentary — How far would you go for your beliefs? For a group of American pacifists in 1950, the answer was Costa Rica, a country that had just abolished its army. “Sweet Home Monteverde” chronicles their surprising and inspiring tale; 12:30 p.m. Saturday, Sept. 28, Meadows Branch Library, 4800 Baseline Road, Boulder; $20; 303-441-4390.
“Rocky Mountain High: The Physics of Baseball at Elevation” — The Department of Physics presents the Saturday Physics Series, lectures geared toward high school students and adults to highlight the exciting research and practical potential of physics. Cookies and lemonade will be available after the lecture and talkback; 1:30 p.m. Saturday, Sept. 28, Duane Physics and Astrophysics, 2000 Colorado Ave., Room G1B30, Boulder; free.
Shine’s New Moon Dance Party — Join us as we bring together community for a night of dinner and dancing at an all out DJ dance party. 10% of all food sales will go toward the Joshua Dias Foundation; 8 p.m. Saturday, Sept. 28, Shine Restaurant & Potion Bar, 2480 Canyon Blvd., Suite M-1, Boulder; free; 303-449-0120.
The Boulder Magic Showcase — Following several sold out shows, Braden Carlisle and friends will once again amaze and amuse the Boulder crowd. This show will feature close-up magic, made visible live on the screen; 8:30 p.m. Saturday, Sept. 28, Dairy Arts Center, 2590 Walnut St., Boulder; $15-$20; 303-440-7826.
Cultivating Mushrooms on Logs and Stumps — This hands-on workshop will explore how to cultivate edible mushrooms on logs and stumps, which when properly tended can be harvested for multiple years. Each participant will receive one log which they have prepared to produce Oyster mushrooms; 9 a.m. Sunday, Sept. 29, RSVP to email@example.com for location, Boulder; $25.
Heritage Day and Vintage Baseball Game — See how autumn was spent on a working ranch in the 1880s and at noon watch the annual vintage baseball game. Costumed volunteers demonstrate chores of the olden days and a blacksmith practices his trade making hardware for around the ranch; 10 a.m. Sunday, Sept. 29, Walker Ranch Homestead, 7701 Flagstaff Road, Boulder; free; 303-776-8848.
Boulder Market — The 18th annual Boulder Market is a unique and enjoyable open air marketplace in scenic Central Park. Find visual art, high quality handmade items and unique treasures sold from a plethora of local merchants; 11 a.m. Sunday, Sept. 29, Central Park, 1236 Canyon Blvd., Boulder; free; 720-272-7467.
Adult Coloring — Each and every Sunday choose a coloring sheet from one of our adult coloring books, use our pencils and enjoy a glass of wine. Cost includes a glass of wine, choice of coloring sheets and pencils to work with; 1 p.m. Sunday, Sept. 29, Settembre Cellars Winery and Tasting Room, 1501 Lee Hill #16, Boulder; $12; 303-532-1892.