This number--called a mole--is a basic measuring unit in chemistry. Mole Day typically falls during National Chemistry Week. Students develop a new method of counting objects, called the PCU, and ...

Mole holes have a diameter of 2 inches and are at least 10 inches deep. Snake holes are smaller and round. Moles thrive in ...

Hey everyone! My name is Avogadro, but all my friends call me Avi. You may have seen my adventures with my friends in Celebrating Chemistry. When we are not exploring, we go to Mole Hill Elementary ...

How could a critter move so fast? It looked fine yesterday! Maybe you race to Google to research “mole hole in yard.” Well… ...