Snape's Potion Class

Snape's Potion Class

What You'll Need:

  • Several Jars
  • A Large Pot or Novelty Cauldron
  • Masking Tape
  • A Pen or Marker
  • Baking Soda
  • Liquid Dish Soap
  • Vinegar
  • Green Food Coloring


Place 1/2 cup of baking soda in a measuring cup or glass jar, and label it as "Powdered Unicorn Horns" with masking tape and a pen or marker. Place 1/4 cup of liquid dish soap in a container labeled "Troll Slime." Finally, place 1 cup of vinegar in a jar, and add a few drops of green food coloring to it; label the jar "Dragon's Blood." Set up the "cauldron" on a surface that can handle spills, in case the potion boils over. (Note: If you can't find an actual cauldron at a Halloween or other novelty store, a large cooking pan will also work well.)

At the Party:

Set the ingredients around the cauldron. Tell the children the name of each ingredient, and then let the birthday child demonstrate how to make a potion! First, pour the powdered unicorn horns (i.e. baking soda) into the cauldron. Next, add several drops of troll slime (i.e. dish soap) to the jar of dragon's blood (i.e. green-tinted vinegar). Then, slowly pour the dragon's blood/troll slime mixture into the cauldron, combining it with the powdered unicorn horns, and watch as the potion bubbles and simmers!

The Harry Potter name and all related characters and elements are trademarks of and © Warner Bros. Ent. This guide is not affiliated with or endorsed by Warner Bros. Ent.

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