Bubbling Witches Brew Science Experiment

Mini wizards and little witches everywhere will be enchanted making our magical Bubbling Witches Brew this Halloween season! This Halloween science experiment doesn't require any expensive supplies or complicated magic spells, just some common ingredients you already have in your kitchen pantry.

bubbling witches brew science experiment

Invite your little ones to make this witches brew and encourage them to use all their science knowledge in a spooky-fun way! Use this brew as a Halloween science experiment to go over some basic science concepts like chemical reactions.

If you're on the hunt for more Halloween science experiments, have a look at this Magic Potion Science Experiment with Baking Soda,  this impressive pumpkin volcano, this super fun Pumpkin Slime or our awesome Science Experiment using Halloween candy!

witches brew science experiment

Scroll down for a fun and free magic potion printable

Bubbling Witches Brew Halloween Science Experiment

Witches Brew Science Expeiment - Supplies:

  • ½ cup white vinegar for each colour
  • ¼ to 1 cup baking soda
  • Food colouring, in various colours
  • 1 small container (a mini witches cauldron works perfectly)

Witches Brew Science Experiment - Instructions:

STEP 1: Colour your vinegar.

Gather all your supplies and let's get started! 

witches brew science experiment supplies

First, mix the food colouring with the vinegar in individual cups for each colour. You will need to add a drop or two of food colouring to each cup to get your required colours. 

Halloween science experiment supplies

STEP 2: Add our magical bewitched ingredient ;)

Then, add the baking soda to the bowl you've chosen to work with. We used a mini witches cauldron for added effect! 

baking soda and vinegar experiment

STEP 3: Create brewing eruption!

Start pouring one colour of vinegar in the bowl containing the baking soda and watch the eruption occur!

baking soda and vinegar science experiment

Halloween science experiment

STEP 4: Make it last longer!

If you want your eruption to last longer, you just need to stir the baking soda with a spoon or popsicle stick and add more vinegar at the same time. 

baking soda and vinegar reaction

Continue with each of the colours you have prepared! 

witches brew Halloween science experiment

easy Halloween science experiments for kids

What magic spell will you mix up? Use our free printable magic spell activity sheet to record your ideas. Use your imagination and see what you can come up with!

Witches Brew Halloween Magic Potion Activity and Printable Worksheet.

We hope you and your kids enjoy making this fun bubbling witches brew! It is the perfect Halloween science experiment. Have fun and happy Halloween!

Bubbling Witches Brew Science Experiment. Baking soda and vinegar Halloween science experiment for kids

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