Some of my science buddies from Teachers Pay Teachers are getting together to have a Happy Mole Day (Oct 23rd) sale! All my science teaching resources (and theirs) will be on sale at up to 20% off. Check out the blog of my friend Mrs. Lau (Science and Math with Mrs. Lau) for more information and links to the the stores that will be participating in the sale: Mole Day Sale Here are a couple of my resources that will be on sale. (And I have 98 other resources that you might want to check out too!) My Chemical Symbols Color by Number activity lets students practice chemical symbols by coloring the puzzle to match the chemical symbol in each section. And my Chemistry Vocabulary Playing Cards help students to identify molecules, compounds, atoms and elements and match pictures to names, symbols, formulas, and definitions.