Nearly two-dozen school and environmental groups will explore ways to become more earth-friendly at Party for the Planet from 10 a.m. to 3 p.m. Saturday at the Buffalo Zoo. Activities are free with admission to the zoo.

The event, which is co-hosted by the zoo and the Western New York Earth Day Committee, will include performances at noon and 2 p.m. by Mama Earth’s Kitchen Band with Sue Rozler.