Bubbling Cauldron
Discover spooky science . . . with your very own bubbling cauldron! Design a felt witch and construct a witchy lair — complete with a cauldron connected to a hidden pump. Mix together a witchy brew using citric acid and colored baking soda, use the pump to add water, then watch your cauldron bubble and boil in a creepy chemical reaction!
Why it’s awesome
Chilling creativity
Use felt and craft supplies to create a spooky scene!
Real science
Experiment with citric acid and baking soda for chemical reactions!
What’s included?
![](https://icdn.kiwico.com/site/store/pdp/whats-included/SWIT-materials.webp)
Topics explored
Chemical reactions
Pump mechanics
Special effects
From the desk of the product designer:
Behind the design
“In early designs, we were planning on having kids just pour the water into the cauldron to set off their chemical reaction. But that made a real mess during testing! So we came up with the built-in pump system to help direct the flow of water. That way, you can keep things tidy and add a dose of mystery to your spooky display!”
- KiwiCo Product Designer
By the numbers
23
Decorative stickers included in the set
5
Colors of cauldron bubbles tested
83+
Cackles of joy heard during product testing
Reviews
4.8
29 reviews
Customer images
![](https://icdn.kiwico.com/site/reviews/avatar-farmer.png)
Terri M.
11/15/2023
My 11 year old grandson loved this set! He sent me a video of it spilling all over the kitchen sink!
![](https://icdn.kiwico.com/site/reviews/avatar-chef.png)
Yasheika
11/09/2022
My daughter enjoyed it. She was able to build it all by herself!
![](https://icdn.kiwico.com/site/reviews/avatar-xylophonist.png)
Rayelle
11/08/2022
My daughter really enjoyed being able to decorate her own Spooky scene for the Halloween Bubbling cauldron. Directions were easy to follow. I love how everything is included in the box.
![](https://icdn.kiwico.com/site/reviews/avatar-gardener.png)
Mimi
10/24/2022
My granddaughter and 2 friends put this together, they absolutely loved it!
![](https://icdn.kiwico.com/site/reviews/avatar-investigator.png)
Cynthia K
10/03/2022
My grandson loved the process of putting it together & the magic cauldron!
![](https://icdn.kiwico.com/site/reviews/avatar-pirate.png)
Shirley
09/28/2022
Best crate ever! My 8 yr old loved this.
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