The mole is just an SI unit for the amount of a substance. 1 mole = molar mass in grams of an element or compound. For example, 1 mole of water is equal to 18 grams (2 x 1 + 16). 1 mole of a gas at STP (standardized temperature and pressure) is equal to 22.4 L. Or 1 mole is equal 6.022 x 10^23 atoms of a substance.
This day was a great way of introducing some of the students to the mole and how wonderful it is to chemistry. During this day, students made "mole-biles" that we hung from the ceiling. They were all made to represent a "mole" character such as Pola-mole-u. We also had some great "mole-food" that the students brought in like dirt and car-mole apples. Students got "mole-dollars" for bringing in their "mole-biles" and "mole-food". Lastly, the students got to sit back and relax to some mole day songs and a little bit of pin the tail on the mole.