The evil witches of Hocus Pocus would love this bubbling Halloween slime recipe! If you want a spooky good time with a family-friendly movie theme, our bubbling, fizzing, erupting cauldron of oozing slime is perfect! This incredible homemade slime recipe is easy to make!
Bubbling Halloween Slime
This spooky slime recipe isn’t just fun—it’s science in action! A chemical reaction between baking soda and vinegar causes the slime’s bubbling effect. Combined, they release carbon dioxide gas, creating eerie bubbles.
The slime’s stretchy texture is due to the polymers in the glue, which form flexible chains. This combination makes for a creepy, bubbling, and stretchy Halloween experiment that’s perfect for some hands-on chemistry!
SLIME INGREDIENTS:
Read more about our RECOMMENDED SLIME INGREDIENTS here, including various slime activators. However, you must use our original saline solution slime recipe for this specific slime.
- 1/2 cup Elmer’s Washable White School Glue
- 1 tbs Saline Solution
- 2 tbs Baking Soda
- 1/4 cup White Vinegar
- Food Coloring (green or any Halloween colors you want!)
- Small Cauldron or Container (for mixing slime)
- Small Cup (for mixing vinegar and saline)
- Cookie or Craft Tray
- Creepy Crawlies
SLIME TIP #1: We chose a small black 5″ cauldron for the slime theme!
When looking for a good container for your fizzing slime volcano, find something taller but with a wide enough opening to allow you to mix the slime easily. The nature of a baking soda and vinegar volcano is that the gas produced during the reaction pushes up and out. A taller and narrower container will yield a better eruption compared to a wider and shorter container.
Bubbling Halloween Slime Instructions
STEP 1: Combine the glue and baking soda in your chosen container. Stir the baking soda into the glue until it thickens—this is really the point of adding baking soda to saline solution slime recipes.
Go ahead and get witchy! Throw in all sorts of creepy crawlies!
SLIME TIP #2: Experiment with different amounts of baking soda!
STEP 2: We used green food coloring for our bubbling Halloween slime. Orange and purple would be fun, too!
Step 3: Mix the vinegar and the saline solution in another small container.
SLIME TIP #3: You can also play around with the amount of vinegar you use for another way to set up a slime experiment!
Step 4: Pour vinegar/saline mixture into the glue mixture and start stirring! You will notice the mixture begin to bubble and eventually erupt everywhere! This is the reason for the tray!
Step 5: Continue to stir until the eruption is complete. You will notice that it gets harder and harder to stir because you are mixing your slime as well!
Once you have stirred as much as possible, pull out your slime! It will be a bit messy at first, but this slime is terrific! All you need to do is knead it a bit.
SLIME TIP #4: add a few drops of saline to your hands before you reach in for the slime!
It should not be sticky on the hands, either! But if it still feels sticky after kneading your slime, you can add a drop or two of saline to it and continue to knead. Don’t add too much, or you will have a rubbery slime!
More Halloween Experiments
Find more fantastic Halloween slime recipes [here] and even more awesome Halloween science experiments [here].
Printable Halloween Slime Pack
Everyone’s favorite slime with special themes is just right for your kiddos! Plus, your kids will get to apply extra hands-on learning through writing, science, and math activities.
- These are easy-to-follow basic slime recipes for fluffy slime, borax slime, liquid starch slime, and saline solution slime.
- Fun Halloween-themed slime recipes for extra creative slime time!
- Combine slime and math with easy-to-use printable sheets.
- Find fun ways to experiment with slime science, including science information and key vocabulary.
- Fun slimy theme activities perfect for centers, early finishers, or classroom party time!
- Perfect for parties and groups!
One Comment
Comments are closed.