Halloween is all about scares and candy for kids. The gross and the fun. Halloween science activities that are super messy are just keeping with the Halloween theme. I have rounded up some gross, very cool, and just creepy activities to add to your fun this October.
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20+ Halloween Science Activities for Kids
Let’s have some, and fill this October with fun Halloween science activities for kids, and parents, of all ages. We’ll be doing a number of these as potions to go along with our Wizards and Wands curriculum which I have conveniently planned to do in October. Especially the invisible writing below.
Some of these activities might be better for after Halloween if you don’t want to buy an extra pumpkin or two, and just plan to use your Halloween pumpkins.
Halloween Science Activities for Kids
Halloween is a time for costumes, trick-or-treating, and spooky fun. But it can also be a time for learning and science activities. Here are some ideas to get you started.
Mix up a bubbly brew in a potions lab fit for any little wizard or witch with an awesome Halloween chemistry experiment and science activity.
Everyone goes a little mad this time of year with the holidays and all that is going on in our lives. You can be mad in the kitchen with this Mad Scientist Slime which is also a great way to experiment and keep calm.
This Electric Eels experiment involves “marinating” gummy worms in a mixture of water and baking soda and then bringing them to life in a glass of vinegar.
Squishy, moldable Halloween Floam is the perfect treat for kids this Halloween. This super simple homemade slime recipe is just one of many AMAZING ways to play with slime this season.
Slime is one of our favorite science activities and we like to make it holiday-themed when we can! This fluffy pumpkin slime is a perfect Fall and Halloween science activity with kids!
Serve it in a big punch bowl like I did with this strawberry sherbet punch, or in individual glasses as I did in this post. Either way, it will look and taste amazing. Read below on how I turned this Mad Scientist Green Punch recipe into a fun science experiment for kids.
This spooky self-inflating ghost balloon will have your kids squealing with surprise and delight
We are sharing how we made an unidentified bug specimen craft that is both spooky and fascinating to make and play with. Take a look and gather your materials.
Cool Science Experiments for kids - Baking soda magic potion
This cool science experiment for kids involves mixing up magic potions using baking soda and vinegar. Kids will be amazed as they watch the baking soda and vinegar react to form a fizzing magic potion!
We love growing crystals and one of our favorite things to do is make our own sparkling decorations for the holidays and infuse them with wonderful scents. So this week we made scented Halloween crystal creations.
This year we kicked off pumpkin season with a Harvest Pumpkin Battery project, then we jumped into a very exciting Halloween Pumpkin Volcano Science Project! Kids love this erupting chemistry experiment we have affectionately nicknamed: Puking Pumpkin!
We LOVE making milk plastic. Once we discovered this non-toxic and extremely simple way of making our own plastics it was like a whole new world of making and creation opened up to us. For Halloween, we decided to try something new, glow-in-the-dark milk plastic!
Lego Gummy Mummies is a fun and unique experiment that explores desiccation and links in beautifully with the study of ancient cultures like Ancient Egypt. Fun and easy to do, this activity will appeal to all ages and is perfect for Halloween Science. Just don’t eat the Lego Gummy Mummies!
These may be one of the creepiest Halloween Bath Bombs yet! I thought our glow-in-the-dark bath bomb with the surprise inside was shudder-worthy, but these Monster Eyes Bath Bombs take it to a whole new level! This is a great bath bomb chemistry project for your tweens and teens.
This pumpkin 5 senses preschool science activity introduces scientific inquiry to young learners and helps get everyone excited about Fall!
Take on the exploding pumpkin STEAM challenge with 4 different ways to explode a pumpkin with chemical reactions and force! These activities are sure to inspire some fall STEAM fun!
Here’s a super cool exploding baggie experiment for kids that requires only a few common household materials. In this activity, you’ll create a chemical reaction using baking soda and vinegar that will make a ghost baggie explode!
Have you ever wondered how many rubber bands it would take to explode a pumpkin in half? We took on the challenge to see how many it would take, and I tell you, to see that pumpkin explode and bust in half was really cool!
The magic of vinegar and baking soda behind this growing monster's hand.
Do your children beg to play hookie, complain about homework, and groan when you request they tell you what they learned each day? You’re certainly not alone.