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22 Halloween Science Experiments

22 Halloween Science Experiments

Unveiling the science behind the mysterious phenomena of glow sticks, dry ice, candies and even teeth you'll realize there's no need to be frightened! Dive into these Halloween-inspired experiments and unravel the secrets that lie beneath the surface!

Browse Halloween Science Projects

Check out all the different halloween projects with complete instructions and videos. They're great for students' science fair projects or a fun way for kids to learn science!

Glow Sticks: Temperature Effects
1. Glow Sticks: Temperature Effects
Let's explore how temperature affects the light from glow sticks!
Medium
Fun with Dry Ice
2. Fun with Dry Ice
Learn how to make a balloon inflate, a film can pop, and a spoon sing with dry ice!
Medium
Earthworms and Plant Growth
3. Earthworms and Plant Growth
Do earthworms help plants grow faster? Find out in this science project!
Medium
Rocks and Minerals: Candy Geology
4. Rocks and Minerals: Candy Geology
Have you ever wondered what the difference between a rock and a mineral is? Find out with this sweet experiment!
Easy
Let's Glow!
5. Let's Glow!
Can bioluminescent bacteria measure water pollution? Join us to find out!
Medium
Light Up Your Mouth!
6. Light Up Your Mouth!
Have you ever wanted to make your own light? With this experiment, you can make your own light by simply chewing on a Lifesaver candy!
Easy
Decomposition by Soil Microbes
7. Decomposition by Soil Microbes
Have you ever wondered how soil microbes help break down organic matter? In this project, you'll explore the environmental factors that favor decomposition by soil microbes.
Medium
The Soil Moisture Mystery
8. The Soil Moisture Mystery
Can earthworms and water help plants grow? Join us in this experiment to find out!
Easy
Soda and Teeth: A Science Experiment
9. Soda and Teeth: A Science Experiment
Ever wondered which soda is the worst for your teeth? Find out in this fun science experiment!
Medium
The Erosion of Tooth Enamel
10. The Erosion of Tooth Enamel
Does drinking soft drinks cause tooth erosion? Find out in this science project!
Easy
Staining Teeth with Beverages
11. Staining Teeth with Beverages
Let's find out which beverage leaves the most stains on our teeth!
Easy
The Effects of Phosphoric Acid on Tooth Enamel
12. The Effects of Phosphoric Acid on Tooth Enamel
Does the acid in soda really cause tooth decay? Find out in this experiment!
Medium
Glow-in-the-Dark Lava Lamp
13. Glow-in-the-Dark Lava Lamp
Create a mesmerizing glow-in-the-dark lava lamp that looks like a swirling snowstorm of colors!
Easy
Glowing in the Dark
14. Glowing in the Dark
Have you ever wondered how to make glow-in-the-dark stickers glow longer?
Medium
Soap Bubbles in Carbon Dioxide
15. Soap Bubbles in Carbon Dioxide
Have you ever wondered how long soap bubbles can stay afloat in carbon dioxide? Let's find out!
Medium
Glowing Bacteria
16. Glowing Bacteria
Have you ever seen bacteria that glow in the dark? In this project, you will streak luminescent bacteria on an agar plate and watch them grow and glow!
Hard
Make Your Own Comet
17. Make Your Own Comet
Learn how to build an icy model of a comet, complete with shooting jets!
Hard
The Chocolate Rock Cycle
18. The Chocolate Rock Cycle
Have you ever heard of rocks made of chocolate? Use chocolate to learn about the rock cycle in this delicious science project!
Easy
Rock Candy: Sweet Science
19. Rock Candy: Sweet Science
Get ready to become a candy-making scientist! Grow your own giant sugar crystals and make rock candy you can eat!
Easy
Starburst Rock Cycle
20. Starburst Rock Cycle
Make delicious rock formations using Starbursts! Learn how the earth makes rocks in a tasty way.
Easy
Colors of Skittles Experiment
21. Colors of Skittles Experiment
Did you know that some Skittles have a secret rainbow hiding inside them? It's true!
Easy
Taste With Your Nose
22. Taste With Your Nose
Can you guess the flavor of a candy without using your sense of smell? Find out in this fun science experiment!
Easy

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