• A worksheet on writing formulas for ionic compounds (pdf).
  • A fun and exciting activity for naming chemical compounds (doc).
  • Naming compounds is one of the hardest things for students to learn. Here are some practice problems to help them along (doc).
  • Questions about the naming, formulas, properties, and bonding in covalent compounds (doc).
  • Everything you ever wanted to teach about hydrates! (doc)
  • Practice problems where students draw the Lewis structures of compounds and then predict bond angles, molecular shapes, etc (doc).
  • Have students play “Formulas Poker” (doc).
  • Try this “Chemical Compounds” wordsearch puzzle.
  • View this “Learning Chemical Formulas” PowerPoint presentation.
  • Use and of these “Formula Writing” (doc) practice sheets.
  • A good worksheet for writing chemical formulas with rules for writing them (doc).
  • A wordsearch in which chemical formulas are given and students have to find the names (doc).
  • Do this “Compounds and Mixtures” crossword puzzle with answers.
  • Make “Balloon Molecules” with the directions on this website.
  • This is worksheet that explains how to write “Lewis Structures of Covalent Compounds” (pdf) using the NASL method.
  • David Katz has a good tutorial and worksheet for “Formula Writing and Nomenclature of Inorganic Compounds” (pdf) with answers (pdf).
  •  Practice writing formulas with The Science Spot’s “Bonding Basics – Covalent Bonds” (pdf), “Bonding Basics – Ionic Bonds” (pdf), and “Bonding Basics Practice Page” (pdf).
  • Or have students bond with each other in their “Bond with a Classmate” (pdf) activity that includes the cards (pdf).
  • This “Polar Bears and Penguins” (pdf) activity introduces the concepts of electronegativity and polarity.
  • Have students play the “Ion Go Fish” (doc) card game contributed by Karen Belciglio from the NSTA Listserve. She includes these “Go Fish Directions (doc).
  • Have students form ionic compounds with this “Ion Puzzle” (doc) and the ion puzzle pieces in this “Ion Puzzle Master” (doc). This site has pictures of students completing the puzzle.
  •  Leslie Gushwa contributed these ion cards (pdf) that are easier to cut out.
  • Show Paul Surko’s PowerPoint presentation on “Chemical Bonding and Nomenclature” (ppt).
  •  During March Madness have students do Flinn Scientific’s “Sweet 16 Chemistry Ion Tournament” (pdf) activity.
  •  Or try Flinn Scientific’s “Sweet 16 Chenistry Compounds Tournament” (pdf) activity.


  • Use common substances and determine if they are ionic or covalent (doc).
  • Make a compound from two elements in this lab (doc).
  • Do this “Properties of Ionic and Covalent Compounds” Lab (pdf).
  • Try this “Formula of a Hydrate” experiment.
  • Make “Candy Compounds” (pdf) with gumdrops and toothpicks in this lab.
  • Have some fun while learning some chemistry by tie dyeing tee shirts. This “Chemistry is Groovy” (ppt) PowerPoint presentation explains the chemistry behind tie dyeing and give instructions for doing it and the “Grateful Dyeing-an Introdution to Bonding” (doc) lab goes along with it. For tieing instructions, go to “Learn Folding.”


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