FREE Printable Halloween Science Experiments for Kids

Get ready for the spooky season with these FREE Printable Halloween Science Experiments.. Make spooky potions, an erupting lava lamp, spooky optical illusions, and lots more spooky science for kids!

Don’t forget my book brute science, It’s also available to order! raw science It is full of horrors scientific experiments and research, perfect for this time of year.

You might also like my spooky (but simple) Halloween STEM Challenges.

Printable Halloween Science Experiments

These can be printed individually or you can find the full booklet containing all the activities at the end of this post.

fizzy potions

Create yours spooky fizzy potion. This is even better if you go for a walk to find a good stirring stick first! I also have a blank version of the recipe so kids can write their own. potion recipe for halloween.

Potions Recipe Instructions – Free Download

Optical illusion

Optical illusions are a great activity for any time of year, but these pumpkin illusions They are my favorites.

Density Jar – FREE Printable Halloween Science Experiment

to keep this Halloween Density Jar Simple, use water and cheap cooking oil, and then try to find a creepy object to float on each layer.

spooky density column scientific research

Pumpkin Lava Lamp

These Halloween Lava Lamps It is a brilliant window decoration and can be used again and again. They are also a great way to learn about density and chemical reactions.

Inflate a pumpkin (in a balloon)

Blow up a pumpkin balloon It’s a great scientific investigation, as you can experiment with different amounts of baking soda and vinegar, use yeast and warm water, or even an effervescent vitamin tablet.