Mole Day

Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates "Avogadro's Number": 6.02 x 1023. This number--called a mole--is a basic measuring unit in chemistry. Mole Day typically falls during National Chemistry Week.


  • Popcorn Counting Unit from AACT
    Students develop a new method of counting objects, called the PCU, and compare this method to the concept of the mole.
  • Can You Color a Mole? from AACT
    Students determine how many moles of paraffin are used when they color a piece of paper and determine how many molecules and moles of wax are in one crayon.
  • Mole Day Word Search from Word Search Labs
    Have your students find 20 mole related words with this fun word search!


  • Mole Day Demos from Pasco Scientific
    What is a mole? Celebrate Mole Day with the PASCO team as they perform demonstrations and an exciting experiment that can be used to answer every chemistry student's classic question, "What is a mole?"


  • Chemistry Composition Challenge from AACT
    In this inquiry-based lab, students will design a method to solve three chemistry problems involving moles, molecules, and density.
  • It’s Mole Time! from AACT
    Determine the number of moles of chalk used to write their name, moles of sugar consumed when chewing gum, and moles evaporated from using hand sanitizer.
  • Moles of Food from AACT
    Analyze the nutrition labels of various foods to see the connection between everyday food items and chemistry.



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