4 Science Experiments to do this Spooky Season

September 28, 2023

Halloween is the perfect time for spooky fun, but it can also be a great opportunity to explore science with your kids. Engaging in Halloween-themed science experiments can ignite their curiosity and foster a love for learning. In this blog, we'll dive into a collection of exciting and safe Halloween science experiments that will captivate young minds and make learning a treat. 

1.   Ghostly Dry Ice Bubbles 

Create a bubbling cauldron of spooky fun with dry ice and soapy water. Here's how: 


Dry ice

Warm water

Dish soap

A large container or bowl

A glove (to handle dry ice safely) 


1.   Put on the glove to protect your hand.

2.   Add warm water to the container or bowl.

3.   Drop a few pieces of dry ice into the warm water.

4.   Squirt some dish soap into the mixture.

5.   Watch as ghostly, fog-filled bubbles emerge!  

The dry ice creates carbon dioxide gas, which forms bubbles when mixed with the soap. The result is an eerie, foggy spectacle that's sure to fascinate young scientists. 

2.   Candy Corn Catapults 

Transform candy corn into a lesson in physics with this simple catapult experiment: 


Popsicle sticks

Rubber bands

Candy corn 


1.   Construct a simple catapult using popsicle sticks and rubber bands.

2.   Attach a small container (a bottle cap works well) to one end of the popsicle stick for holding the candy corn.

3.   Load a piece of candy corn into your catapult.

4.   Aim and launch! 

Experiment with different angles and amounts of force to see how far you can make your candy corn fly. This experiment teaches kids about potential and kinetic energy. 

3.   Glowing Pumpkin Volcano 

Create a mesmerizing volcanic eruption inside a pumpkin: 


A small pumpkin

Baking soda


Glow-in-the-dark paint (optional)

Dish soap

A carving knife (adult supervision required) 


1.   Carve a small opening at the top of the pumpkin and remove the seeds and pulp.

2.   Paint the inside of the pumpkin with glow-in-the-dark paint (optional).

3.   Fill the pumpkin halfway with baking soda.

4.   Add a few drops of dish soap.

5.   Pour vinegar into the pumpkin, and watch it foam and glow! 

The chemical reaction between the baking soda and vinegar produces carbon dioxide gas, creating a bubbly, eerie eruption inside your glowing pumpkin. 

4.   Witch's Brew Slime 

Create a gooey, green witch's brew with this slime-making experiment: 


White school glue

Liquid laundry detergent

Green food coloring

Plastic cauldron or container 


1.   Pour white school glue into the cauldron.

2.   Add a few drops of green food coloring and mix.

3.   Slowly add liquid laundry detergent and stir until it forms a slimy consistency. 

Encourage kids to use their hands to mix and knead the slime. This experiment explores the concept of polymerization, as the glue molecules link together to form a stretchy, slimy substance. 

Halloween is a time for spooky fun and creativity, and these Halloween science experiments for kids offer the perfect blend of education and entertainment. Encourage your young scientists to explore the mysteries of dry ice, physics, chemistry, and polymerization while having a ghoulishly good time. Happy Halloween and happy experimenting!

Tagged: After School Program in Fullerton

Optimus Learning School is a tutoring center in Brea serving Fullerton, Placentia, and Yorba Linda. Since 2008, we have been helping students from kindergarten through high school achieve their academic goals through our various programs such as our home school, after school program, homework help, and private tutoring. We also offer seasonal programs such as our popular summer camp. There are many enrichment classes year-round, such as coding, STEM, piano, and art which will help shape creative and well-rounded students. Are you ready to kickstart your child’s education? Send an inquiry form or contact us today!

After School Program in Fullerton