20+ Must-Try Halloween Science Experiments for Kids

Activities for ages 3 to 8.

These 20 Halloween science experiments for kids are sure to get little ghosts and goblins excited. Make tea bag ghosts really fly, whip up a batch of dancing Frankenworms and dissolve the M off of leftover M & Ms. There are so many spook-tacular science experiments for kids!!

20 Halloween Science Experiments for Kids

Spooky Experiments

Teach kids about convection and air pressure with these super awesome {and surprisingly easy!} tea bag ghosts.

Super-Cool-Kids-Science-Tea-Bag-Ghosts-680x1024 (1)

Set up an easy salt and ice experiments with a batch of homemade haunted hands.


Whip up a batch of crowd pleasing ghost rockets.

ghost rockets 012Draw a ghost face on a white balloon and make it magically inflate.

Have a slime fan? Mix a batch of our easy glow in the dark slime.

Glow in the Dark Slime

Teach kids about bones with a toddler skeleton puzzle.


Want to try something crazy cool?! Grab a bag of ghost marshmallow Peeps and make these exploding geysers.


Pumpkin Science Experiments

Take a closer look at what’s inside pumpkins with this easy pumpkin guts exploration.


Have kids predict whether a pumpkin will sink or float and then test their hypotheses.

Learn about how pumpkins grow with this free life cycle of a pumpkin worksheet.

Make a bubbling boo bomb. {The name alone sounds cool, doesn’t it?!}

boo 32

Want a big wow factor? Create an erupting pumpkin volcano.

Hang onto your jack-o-lantern after Halloween and see what happens as it rots.

Swap out a white ghost balloon for an orange jack-o-lantern variety and magically inflate it.


Whip together a batch of pumpkin oobleck.


Halloween Candy Science Experiments

Grab a bag of ordinary gummy worms and turn them into super cool dancing Frankenworms.

Awesome-Kids-Science-Make-Worms-Dance-672x1024 (1)Make candy pumpkins magically disappear.

Dissolving-Pumpkin-Candy-ExperimentsHave some candy corn lying around? Try these three easy candy corn science experiments.

Test whether different candies sink or float.

Dissolve the M off of an M & M.

Dissolving-MM-Candy-Science-ExperimentGrab a handful of gummy bears and make them magically grow.

Mix together some fizzing candy corn foam dough.

Candy Corn Dough Recipe (1)

Find More Science Experiments for Kids

Little Einsteins will love making a tornado in a jar, building pop rockets and experimenting with our magic balloons.


Save time, stay inspired and get EVERY student bigger results!

1 Comment

  1. Laurel

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  1. Fizzing Halloween Science | There's Just One Mommy - […] Halloween Science Experiments for Kids from Playdough to Plato […]

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Hi, I’m Malia.

I LOVE helping Pre-K, Kindergarten and First Grade teachers save time, stay inspired and give EVERY student bigger results. I’m so glad you’re here!

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