Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Daycommemorates Avogadro's Number (6.02 x 1023), which is a basic measuring unit in chemistry. Find ways to celebrate this chemistry “holiday” with the links below.
Mole Day also typically falls during National Chemistry Week—an annual event that unites American Chemical Society Local Sections, businesses, schools, and individuals in communicating the importance of chemistry in everyday life.
National Mole Day Foundation is your go-to source for all things Mole Day. Jokes, history, themes, store—they’ve got it all. Don’t miss the “Fabulous Mole Projects” gallery.
- How Big Is a Mole?
Step 1: Consider a mole of cans of Spam. Step 2: Compare its weight to the weight of all the gold in the U.S. Treasury. Step 3: Make a poster about it.
- Getting Ready for Mole Day
Whip up a batch of Grandma Button’s Molasses Cookies to celebrate Mole Day. But first, can you translate the recipe?
Estimate! Measure! Analyze! Problem solve! Who will win the gold medal?
- Chemical Quantities Activities
Just in case you wanted to dedicate part of Mole Day to, you know, learning something… Take a look at this collection of worksheets, puzzles, and labs about moles.
- Molar Whack
Chemistry meets the arcade in this online game. Whack a mole on the head—how many points can you earn? (Tip: Hit elements with the highest molar mass!)
- Molennium Instructions & Pattern
We’re celebrating Mole Day! “Sew” can you! Who will your stuffed mole be? The Mole-a-Lisa? Santa Claws?
- Mr. Mole and His Hill
Is knitting your thing? Grab some yarn and get going with this Mr. Mole pattern for a memorable mole-mento.
- Send a Mole Day Greeting Card
Print a card at this link—Avogadro goes pop art, or use it as inspiration for your own creation.
- Mole Day Infographic
A picture is worth a thousand words, right? Great visual explanations here, maybe even… 6.02 x 1023 words worth?
- What You Need To Know About the Mole
Get the scoop in this short interview.
- Chemists' Holiday
6.022 x 1023. Just how large a number is that? These statistics can help make it clearer.
- Mole Day Celebration
Scratching your head trying to come up with ideas on how to celebrate Mole Day? Look no further!
- Mole Day at Woodstock Academy
What to do on October 23? Take a peek inside this school’s Mole Day for ideas.
- Mole Day Jokes
More Mole Day Jokes
What did Avogadro teach his students in math class? What’s his favorite kind of music? Share these mole jokes!
- Mole Day Podcast
Two science teachers chat about Mole Day during an episode of “Lab Out Loud.”
(all sites accessed October 2018)
Help Create the Updated
Periodic Table of Moles
What better way to celebrate Mole Day than by creating an element for a periodic table full of moles! Chartered ChemClubs can find more information about how to participate here.
Don't want to create an element, then buy your copy now!