October 26 @ 2:00 pm - 3:00 pm STEM Mystery Bag Challenge (Ages 9-11, RG) Central Branch-Howard County 10375 Little Patuxent Pkwy,, Columbia, MD, United States Race against the clock while using a blind bag of supplies to engineer your own marvel! (Ages 9-11) Free
October 26 @ 2:00 pm - 3:00 pm Science Saturday – Egg Drop Engineering Davis Library 6400 Democracy Blvd., Bethesda, MD, United States Calling all future NASA engineers! Can you protect your cargo from a 10 foot drop? Free
October 26 @ 2:00 pm - 4:00 pm MakePlayLearn Calvert Library Twin Beaches Branch 4100 5th Street, North Beach, MD, United States Take building and creativity to a whole new level at the library. Free
October 26 @ 2:00 pm - 4:00 pm Chess Club Waldorf West Branch 10405 O’Donnell Place, Waldord, MD, United States Players of all ages are invited to join Chess Club at Waldorf West! Free
October 26 @ 2:30 pm - 3:30 pm STEAM Makers: Creepy Crawlies (8-11 years) RG Savage Branch Library 9525 Durness Lane, Laurel, MD, United States Replicate insects, arachnids, and other invertebrates using 3D Printing Pens. (Ages 8-11) Free
October 26 @ 2:30 pm - 4:00 pm pH Painting Because Science 1759 columbia rd nw, washington, DC, United States Curious about what pH is and how to paint with it? Stop by and find out! Free
October 26 @ 3:00 pm - 5:00 pm Minecraft X ROBLOX Elkridge Branch Library 6540 Washington Blvd,, Elkridge, MD, United States Craft Minecraft or ROBLOX characters in Blender 3D! Learn the basics of Blender. Free
October 26 @ 3:30 pm - 4:30 pm Slime Time Central Library -Enoch Pratt 400 Cathedral St., Baltimore, MD, United States Make a colorful, squishy mess, then take your creation home! Free
October 26 @ 4:00 pm - 4:30 pm STEM at the Library: Glow in the Dark Slime! – In Person Marilyn Praisner Library 14910 Old Columbia Pike, Burtonsville, MD, United States Enjoy your day off school with this hands on fun activity! For ages 8 & up. Free
October 26 @ 4:00 pm - 4:30 pm STEM at the Library: Glow in the Dark Slime! Marilyn Praisner Library 14910 Old Columbia Pike, Burtonsville, MD, United States Come and learn the science behind making slime and what makes things glow. Free
October 26 @ 4:00 pm - 6:00 pm Halloween Bracelet Making Because Science 1759 columbia rd nw, washington, DC, United States Make-N-Take Stretchy Bracelets at The Craft Lab! Free
October 26 @ 6:30 pm - 11:00 pm Howard Astronomical League Public Star Party Alpha Ridge Community Park 11685 Old Frederick Road, Marriotsville, MD, United States Public star party Free