October is one of the best months of the year.
Not only does the tempature start to drop, but October kicks off the hoiday season, with one of the best holidays ever, Halloween!
Halloween is the perfect time to explore the grosser, creepier, and spookier side of Halloween STEM.
Halloween science experiments are truly memorable, and provide tons of educational value for kids!
Easy Halloween Science Experiments for Elementary Students
Love Halloween? Love science? Then you’ll love these creepy science experiments for Halloween.
You don’t have to be a scientist to do these fun science activities at home with your kids.
These Halloween science experiments work for at home, at a Halloween party, and in the classroom to make your elementary science experiments a bit more fun!
Each of these Halloween experiments can be adapted for a wide variety of ages, from kindergarten all the way up to middle school!
What are the benefits of Halloween science projects?
Why are kids fascinated with all things spooky, gross, and creepy?
It’s definitely hard to say, but Halloween is the perfect time to take advantage of this fascination.
Kids will love learning about the science behind their favorite creepy experiences and Halloween is also a fun time to give a Halloween or spooky twist to any traditional science experiment.
Why just make a baking soda and vinegar reaction when you can turn it into a mad scientist’s lab?
Or why make a regular leakproof bag science experiment when you can turn it in to creepy brain surgery?
With a bit of imagination, Halloween science is the best science of all!
If you love Halloween science, don’t miss this list of Halloween slime recipes!
What do kids learn doing Halloween science experiments for the classroom?
These Halloween science experiments teach chlidren about a variety of scientific concepts including:
- Density
- Molecules and atoms
- Bacteria and mold growth
- Molecular bonds
- Chemical reactions
- Physics
- Osmosis
- Anatomy
- Properties of matter
- And more!
You just might be surprised how much science there is to learn within the realm of Halloween science activities!
Don’t miss the complete list of Halloween STEM activities.
What to include in a Halloween science activity:
All Halloween science demonstrations should contain four parts:
- A question or hypothesis.
- A test or experiment.
- The recording of data.
- A re-test with additional varaibles.
Include these four elements in your science experiments to make them true experiments, rather than just science demonstrations.
Supplies for Halloween science:
EZ BioResearch Bacteria Science Kit (IV): Top Science Fair Project Kit. Prepoured LB-Agar Plates And Cotton Swabs. Exclusive Free Science Fair Project E-Book Packed With Award Winning Experiments.Corning Pyrex #4980 Erlenmeyer Narrow Mouth, Glass Flask Set – 5 Sizes – 50mL, 125mL, 250mL, 300mL, 500mL
Superlady 18pcs 20x150mm 36ml glass test tube with Wooden stopper for scientific experiments, party, decorate the house, candy storage
Pyramex S4110SMP Intruder Safety Glasses (12 Pack), Clear Lens with Assorted Temple Colors
Delta Education Metal Tweezer, 4
Be Amazing Toys Big Bag Of Science +70 Activities
Our favorite Halloween science books:
Grab these Halloween science experiment books if you need more ideas!
Grossology: The Science of Really Gross ThingsOh, Ick!: 114 Science Experiments Guaranteed to Gross You Out!
Bugs: A Stunning Pop-up Look at Insects, Spiders, and Other Creepy-Crawlies
The Mason Jar Scientist: 30 Jarring STEAM-Based Projects
READY TO GO HALLOWEEN SCIENCE KITS
If you’re short on time, try ordering one of these Halloween science kits!
Playz Disgusting n’ Gross Zombie Farts, Boogers, & Bloody Slime Science Activity & Experiment Set – 34+ Tools to Make Levitating Eyeballs, Gizzards, Fart Putty & Boiled Boogers for Boys & Girls Age 8+Scientific Explorer Disgusting Anatomy Brain
Halloween Idea – ZOMBIE PLANT GROW KIT- (Touch It and It PLAYS DEAD!) Unique Nature Kit- Grow a Fun Interactive House Plant that Plays DEAD when Touched & Comes back to life in Minutes!
Ghost Science Kit
Halloween Science Party
Now, let’s get to the creepy science experiments!
Halloween Science Experiments for the Classroom
Halloween Science Experiments for the Elementary Classroom
Bring the spooky science of science to life this Halloween with these spooky Halloween science experiments for kids!
Hand Washing Science Experiment
In the Germs Handwashing Science Experiment kids will learn why it's important to wash your hands!
Stunning Glow in the Dark Oobleck Experiment for Kids
Try the Glow-in-the-dark Spooky Oobleck for a creepy twist on the classic non-Newtonian science experiment.
Osmosis for Kids: Blood Cell Membrane Experiment
Try the Blood Cell Osmosis for Kids Experiment and learn about how blood cells work.
Bring The Classroom to Life with a 3D Blood Model
Speaking of blood, kids will really love making a 3d Blood Cell Model!
Become a Halloween Hero when You Make Boiling Blood Slime
Make someone's blood boil when you make this bubbling slime that looks just like blood!
Bread Mold Experiment
Explore the gross side of science this Halloween when you do a classic Bread Mold Experiment.
Gross and Jiggly Halloween Jello Worms
Making Jello worms is creepy, but it's also a lesson in kitchen science! Get the Halloween Jello Worms Experiment tutorial here.
Exploding Minecraft Creeper-Inspired Alka Seltzer Rockets
If your students love Minecraft, try this Exploding Minecraft Creeper Chemistry Experiment.
The Perfect Halloween Twist on the Leakproof Bag Experiment
Get a little creepy with this Vodoo Doll Leakproof Bag Experiment.
How to Make a Spooktacular Halloween Density Jar
Halloween can mix with spooky and science lessons in this fun Halloween Density Jar Science demonstration!
Bubbling Spider Leg Potion
Practice the spooky art of witch science when you make a Bubbling Spider Leg Potion Chemistry Experiment.
Halloween Science Lab: Erupting Mad Scientist Potion
Build your own DIY Halloween Science Lab and think like a mad scientist!
Halloween Science: Build a Cotton Swab Skeleton
Create your own spooky skeletons and learn about the body with Cotton Swab Skeleton Science.
Witch-Inspired Salt Crystals Science Project for Halloween
Make salt crystals that look like witches with this Witch Salt Crystal Science Experiment.
How to Make a Ghost Cartesian Diver
Love the Cartesian diver project? This diving ghost version is even more fun!
"Brain Surgery" Leak Proof Bag Experiment
Find out what it's like to be a mad scientist with a Brain Surgery Leakproof Bag Experiment!
Edible Pitri Dish Bacteria: Bacteria You Won't Regret Eating!
Try your hand and making your own Edible Pitri Dish Bacteria.
Be the Best Science Teacher Ever with Ghost Chromatography
Learn all about what colors are lurking in your favorite marker when you try the Ghost Chromotography Science Experiment.
Science and Spooky Collide in this Skull Slime Recipe
Freak out the class with this skull slime recipe!