You know that little stuffed hamster your “wacky” teacher keeps on a shelf?  That’s supposed to be a mole.  Seriously.  If you want to see what a real mole looks like, view this video.

• What’s a mole?  Aside from an ugly rodent, that is.

• How to do mole calculations:  Grams, moles, molecules, and ions are all part of this engaging and exciting tutorial.  Brought to you by the makers of something that’s not as boring as that all sounds.