Learning chemistry doesn’t have to be scary. Well, except on Halloween! Find creepy chemistry ideas using dry ice, glow-in-the-dark pumpkins, and more.



  • Halloween Chemistry Demonstrations from C&EN
    Halloween twists on several common chemistry demonstrations make for spooky excitement, including the puking pumpkin, ectoplasmic drool, and the dark-side pumpkin.
  • Genie in a Bottle from Flinn Scientific
    When sodium iodide is dropped into a flask containing 30% hydrogen peroxide, a “magical” genie appears in the form of water vapor and oxygen.
  • Using Dry Ice to make a Spoon Sing (Scream!) from ThoughtCo
    Listen carefully for the sounds of Halloween screams.
  • Amazing Bag of Blood from Kitchen Pantry Scientist
    Stab a bag of “blood” without spilling a single drop in this easy Halloween demo.
  • Frankenstein’s Hand from Mom it Forward
    Frankenstein’s hand comes alive in this acid–base reaction.Watch others cook, taste, and smell in these videos. Then, connect chemistry to what you see.


  • Math & Science Pumpkins from Oregon Agricultural in the Classroom Foundation
    Do pumpkins sink or float? Students engage in several lab activities using pumpkins.
  • Spooky Diving Ghost from STEAMsational
    Put the pressure on this ghost to make it sink, then float up to the top once again.
  • Fluffy Zombie Brain Slime from Little Bins, Little Hands
    Create this extra fluffy slime recipe in a brain-shaped (or Halloween themed) mold.
  • Crystal Pumpkin Suspension Science from Little Bins, Little Hands
    Students can grow borax crystal pumpkins overnight!



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