Halloween Science Experiments for Preschoolers

How about some science fun with a balloon? My kids had no idea what to expect when we started this self-inflating balloon experiment.

This would make a fun Halloween theme science experiment. Use some spooky, Halloween colors for your food color. Orange. Black. Dark green. Red.

This is a pretty way to decorate your pumpkins without craving them. It isn't less messy though that is for sure, but the end result is worth it.

While most pumpkins take 90 to 120 days to grow, this simple pumpkin science experiment will allow children to use a chemical reaction to quickly grow a silly Jack-o-Lantern Pumpkin.

This simple lava Lamp science experiment is fun and easy to do with kids of all ages.

Kids will go nuts over this simple, flying ghost science experiment that combines a Halloween activity for kids with some Halloween science too.

This Halloween STEM activity is the answer! Perfect for the classroom, homeschool, or Halloween Party. This activity teaches kids about the physics behind Newton’s Laws of Motion.

These salt crystal ghosts are a fun twist on the traditional crystal Christmas trees often made.

Halloween crafts are perfect for parties or groups. today we bring you Halloween Shooter Toys.  I hadn’t made any with my kids in ages and thought a Halloween version would go down well!

Looking for a spooky science experiment? Kids of all ages will be mesmerized by this flying ghost science experiment! Besides having fun with a clever Halloween science experiment, students will be learning about how hot air rises.

Halloween is a great time for the spooky, the messy, and the science.  Yep!  Science time!  Having a theme like this fun holiday to tie into a project really brings the lesson alive for kids.

Glow in the dark eggs – a science experiment for kids. Easily create a naked egg through a chemical reaction of dissolving an egg’s shell in vinegar. Make it glow with this added ingredient for extra creativity and fun! 

This outrageously FUN Exploding Pumpkin is a fun Halloween science experiment for kids of all ages from toddler, preschool, pre-k, kindergarten, first grade, and 2nd-grade students. This pumpkin activity is super simple to try using common materials you already have in your kitchen!

Hope you’re having a wonderful month of October! We have tried a rather exceptional version of the “skittles science experiment” using only orange and green skittles.

Your children will love making this ooey-gooey Do It Yourself Halloween Monster Slime! The secret to countless fun slime time is to use safe, nontoxic, and washable glue. To make the slime sparkle, I used black glitter.

These pumpkin science experiments are quick, easy, and engaging for kids of all ages. For this Halloween science, all you need are a few common liquids, candy, and our dissolving candy experiment worksheet.

Brew up your own bubbling potion with this Halloween lava lamp project perfect for October. This twist on the classic lava lamp science experiment is quick and easy to make!

For our own curiosity shop theme this year, I recreated an old trick using a special homemade salt dough bone and a custom-designed “magic” box. Our puzzling possessed bone combines the same basic principles of magnetism with a simple DIY trick box and bone.

This silly and fun static electricity experiment is a great way to play and learn about science while having fun with Halloween activities. All you need to try this ghost experiment is a balloon, tissue paper, and a marker.

When it comes to finding the perfect Halloween Science Experiment, there's no debating that baking soda activities for kids just might be at the top of that list.

This fast, simple, and oh-so-fun Marshmallow Halloween Science Experiment for your kids. This kitchen science project has a huge wow factor as students learn about the expanding power of heat. It also brings in some art for your artistic kids.

You’ve probably heard of the dancing raisins science project, well seeing as those it’s October and Halloween is just around the corner I decided to make a more relevant theme. This frankenworms experiment demonstrates the same chemical reaction with baking soda and vinegar, but with fun Halloween activities.

Kids will have fun exploring scientific principles with this melting pumpkins project perfect for October. Not only will children learn about simple chemistry through this baking soda and vinegar experiment, but they will also have loads of fun with Halloween activities.

Shadow puppets aren’t just for sunny days, they’re great fun indoors with a torch in winter too.