October 22 @ 4:00 pm - 5:00 pm Tween Scene: Laser Maze Box Challenge (ages 8-13) Middletown Branch Library 31 East Green St, Middletown, MD, United States Join us to learn a little bit about lasers and angles. Free
October 22 @ 4:00 pm - 5:00 pm STEM Fun: Structural Engineering Oxon Hill Branch 6200 Oxon Hill Road, Oxon Hill, MD, United States Dive into the world of science, technology, engineering, and math with fun, hands-on activities. Free
October 22 @ 4:00 pm - 5:00 pm AI IRL: Real Talk for Teens Quince Orchard Library 15831 Quince Orchard Road, Gaithersburg, MD, United States Teen discussion series using real AI headlines to bust myths, weigh risks, and learn responsible use. Free
October 22 @ 4:30 pm - 5:30 pm Coding with Python – A Six-Week Course potomac library 10101 Glenolden Drive, Potomac, MD, United States A six-week course for ages 10 to 14 designed to spark interest in programming through guided instruction. Free
October 22 @ 4:30 pm - 6:00 pm DIY Witches’ Brew Lava Lamps Because Science 1759 columbia rd nw, washington, DC, United States Get ready to make your very own lava lamp! $8.00
October 22 @ 5:00 pm - 7:00 pm October 2025 ISSA Central Maryland Meeting – Capture The Flag (CTF) Event Sponsored by Corelight Leidos 6841 Benjamin Franklin Dr., Columbia, MD, United States CTF (Capture the Flag) event being hosted by CoreLight Free
October 22 @ 6:00 pm - 7:30 pm STEM Lab: Geology Accokeek Branch Library 15773 Livingston Road, Accokeek, MD, United States Everyone can be a maker. Get creative and learn by doing to develop new skills. Free
October 22 @ 7:00 pm - 9:00 pm Baltimore Hackerspace – Microwave Night Baltimore Hackerspace 7964 East Baltimore Street, Baltimore, MD, United States A makerspace open-house, microwaving increasingly inadvisable choices until all the microwaves give up. Free
October 22 @ 8:00 pm - 9:00 pm “What is ECE?” Webinar by UMD Women in Electrical and Computer Engineering Join WECE for a virtual webinar where we discuss what exactly Electrical and Computer Engineering is! Free
October 23 @ 12:00 am - 11:30 pm MD STEM Fest Reading Challenge Online Discover STEM fun. Complete STEM-themed activities and read books to fill your bingo board. Free
October 23 @ 9:00 am - 5:00 pm Take N Make: Pantograph Art Machine Hagerstown Branch 100 S. Potomac St., Hagerstown, MD, United States Register to pick up your Take N Make kit at the library branch of your choice between October 20 and 24. Free
October 23 @ 9:30 am - 12:00 pm New Volunteer Orientation Session Robert Thomas, Team Leader, MC STEM Volunteer Program via Zoom New Volunteer Training/Information session of MC STEM Volunteer Program Free