Hydrogen : Get to Know an Atom -- Helium : Hey, Cool It! -- Boron : A Star Is Boron -- Carbon : Good Conduct Award -- Nitrogen : Fixin' to Use Some Nitrogen -- Oxygen : Global Cooling - On the Trail of Cavendish -- Fluorine : Try the Fluorine Tooth Test -- Neon : Even Neon Gets Excited -- Sodium : Hot Ice -- Magnesium : Trick Birthday Candles - Crackpot Crystals -- Aluminum : Curses---Foiled Again! -- Silicon : Don't Sand So Close to Me - Fast-Track Fossils -- Phosphorus : Playing Cat Detective -- Sulfur : Save That Silver! -- Chlorine : "I'll Have an Egg Float" -- Calcium : Not Such a Softie -- Iron : Burning Iron -- Copper : May the Force Be with You -- Zinc : Did You Wind the Potato Clock? -- Tin : Is That a Tin "Tin Can"? -- Bonus Activity: Because You're Worth It : "DIRTY DOZEN" Arsenic ; Strontium; Cadmium; Cesium; Mercury; Lead; Polonium; Radon; Francium; Radium; Uranium; Plutonium.

Hydrogen -- Helium -- Boron -- Carbon -- Nitrogen -- Oxygen -- Fluorine -- Neon -- Sodium -- Magnesium -- Aluminum -- Silicon -- Phosphorus -- Sulfur -- Chlorine -- Calcium -- Iron -- Copper -- Zinc -- Tin -- The "dirty dozen". Arsenic ; Strontium ; Cadmium ; Cesium ; Mercury ; Lead ; Polonium ; Radon ; Francium ; Radium ; Uranium ; Plutonium.