On Friday, October 24, 2025, students celebrated Mole Day, one of Leominster High School’s most beloved traditions.
It is a science-based holiday celebrated annually on October 23, from 6:02 am to 6:02 pm, to commemorate Avogadro’s number 6.02×1023. For a full day, all science classes headed outside to enjoy hands-on activities, games, and experiments instead of the usual classroom lessons.
The event featured a variety of stations, including slime-making, grip strength tests, homemade lava lamps, trivia, and even ice cream made with ice, salt, milk, and sugar in plastic bags. Students also had the chance to win prizes and spend time with friends between stations.
While many students look forward to Mole Day every year, not everyone feels the same.
Senior Kyleigh Breen said, “I personally think it’s boring because it’s the same activities every single year. So it’s probably exciting for the freshman, but for the seniors it’s just a lot of walking around.”
Others, though, were happy to join in on the fun.
When asked: ‘Do you look forward to Mole Day?’ Senior Kalel Sanchez explained, “Yes, I used to be a part of the science club, so I kinda look forward to this.”
Freshman Victoria Swift agreed. “It’s good. I got to see a lot of my friends who[m] I don’t see a lot, so it’s awesome.”
One of the most popular stops was the slime station. Every year, the lines to this table are lengthy, with students having to wait a long time for their turn to participate in the slime-making fun.
Senior Samuel Ward explained, “My favorite station is the slime station.” He added, “It’s just the most interactive, and you can bring home slime after.”
Even teachers saw the value in the special day. AP Biology teacher Dylan Gamache said, “Well, I think that one reason is that when you’re stuck inside the classroom all day long, it’s kind of a miserable experience if that’s all you’re doing. So, being given the chance to go outside is kind of a nice way to just do something more hands-on.”
