Beethoven's 'Egmont' — Boulder Chamber Orchestra presents "Beethoven's Egmont," featuring Hummel's "Piano Concerto, No. 3" and Beethoven's "Complete Incidental Music to Egmont." Guest artists are pianist Andrew Staupe and soprano Christie Conover; 7:30 p.m., Saturday, Boulder Adventist Church, 345 Mapleton Avenue, Boulder; $15- $25; 303-583-1278, boulderchamberorchestra.org.
The Chemistry of Cooking — Join professor of chemistry, biochemistry and physics David Nesbitt for "The Chemistry of Cooking!" You'll learn secrets to a perfect pie crust, how to cook scrambled eggs without heat or how to reverse the entropy in your hot cocoa; 9:30 a.m., University of Colorado Cristol Chemistry Rm 140, Regent Drive at Broadway, Boulder; free; 303-492-5011, colorado.edu/cuwizards.
BIFF Animation Workshop — An Animation Station Workshop for ages 6 and up is planned as part of the 2018 Boulder International Film Festival. Explore the wonders of stop-motion animation in a fun and easy way that will get kids moving. Presented by ASIFA and Mighty Fudge Studios; 1 p.m., Boulder Public Library, 1001 Arapahoe Ave., Boulder; biff1.com.
Hidden Masterpieces of the Renaissance — Ars Nova presents music from the Golden Age: vocal polyphony that, like a spider's web, is both delicate and strong, weaving together beautiful melodies into sparkling constructions of musical genius. Featured works will include compositions by Josquin des Pres, Constanza Porta, and Orlande de Lassus; 7:30 p.m., Saint John's Episcopal Church, 1419 Pine Street, Boulder; $20; arsnovasingers.org.
Becky Shaw — In Gina Gionfriddo's "Becky Shaw," a newlywed couple fixes up two romantically challenged friends. When an evening calculated to bring happiness takes a dark turn, crisis and comedy ensue in this wickedly funny play that asks what we owe the people we love and the strangers who land on our doorstep; 7:30 p.m., Louisville Center for the Arts, 801 Grant Ave., Louisville; $15-$18; 303-665-0955, cctlouisville.org.
Pat McGee Trio House Concert — Pat McGee returns for his fifth show on the Sounds of Simon house concert stage. McGee is the leader of the Pat McGee Band, which played to sellout crowds all across the country for over 10 years. McGee has connections to Colorado, having played Red Rocks with Blues Traveler, numerous sold out shows at The Fox, and also sharing the stage with Big Head Todd at the Fillmore Auditorium; 5 p.m., Sunday, Sounds of Simon House Concerts, 1086 East Roggen Way, Superior; $20; soshouseconcerts.com.
Alexander Ziegler Cuarteto — 2018 marks the 7th North American Tour of the Alejandro Ziegler Cuarteto. CMDance, along with our community partners Halina Palmer, Jeffrey Brenman, and Behind the Ogden, presents these world class musicians for their debut performance in Colorado. The ticket price includes a home cooked buffet dinner by Halina Palmer and the Loco Tango crew, seating family style at shared tables. There will be two sets of live Argentine tango music suitable for tango dancing with DJ music (by Tara Fortier) before, after and between sets; 7 p.m., Sunday, Avalon Ballroom, 6185 Arapahoe Road, Boulder; $20; zieglertango.com.
Jeff & Paige perform — Dance and sing with nature musicians Jeff and Paige. Registration is required. Jeff and Paige will play some special evening shows at Thorne this winter. Explore the creatures in the aquatic tanks, look at pond samples under microscopes in the science lab, and paint faces with bright colors. Light snacks will be provided; 4:30 p.m., Monday, Thorne Nature Experience, 1466 63rd St., Boulder; thornenature.org.
Saving Snow Global Release — It's impossible to not notice the changes that global warming is already bringing to the mountains. Across the country, people who depend on winter for their livelihood are feeling the heat. On the sidelines of skiing and snowboarding, a struggle to reverse rising temperatures is unfolding. Come see how climate change is already impacting communities that depend on winter sports, from Vermont to Wisconsin and the Rockies, and learn how ski towns and the snow sports industry are paving the way towards a clean energy future. A screening will be followed by a short presentation and update on the work of Citizens' Climate Lobby, a nonpartisan organization working to pass national climate legislation; 7 p.m., Monday, Unitarian Universalist Church, 5001 Pennsylvania Ave., Boulder; uuchurchofboulder.org.
Beyond Borders: Environmental Cooperation In Israel and Palestine — Israeli Noa Gluskinos and Palestinian Ashraf Akram are recent alumni of the Arava Institute for Environmental Studies. They will talk about the cross-cultural community and environmental studies at the Arava Institute, where students from Israel, Palestine, Jordan and around the world come together to collaborate on environmental solutions; 7 p.m., Monday, First United Methodist Church, 1421 Spruce St., Boulder; free.