Slime and Halloween are like best friends because who doesn’t want to make gooey, squishy, gross slime concoctions. And this is the easiest Halloween slime recipe for kids. Whether you add in spiders or eyeballs, we’ll show you how to make slime like a pro using our favorite basic slime recipe, best slime ingredients, and easy tips and tricks to create AMAZING slime every time.
Make Slime With A Halloween Theme
This easy to make Halloween slime recipe is the perfect party activity and party favor for kids. Plus, it’s fun to whip up and put together with really simple ingredients that you can pick up at the grocery store too.
Packed into little plastic condiment containers, Halloween themed candy-free slime party favor ideas are great to make and take or hand out at the end of the night.
It also makes for an easy slime for the classroom. Kids will have a blast mixing this Halloween theme slime, and playing with it too!
Kick-off your Halloween this year with an easy slime recipe! Science is full of cool ways to create including homemade Halloween slime ideas.
Check Out More Fun Things To Do This Halloween…
- Halloween Science Experiments
- Halloween STEM Activities
- Halloween Art Projects, and Crafts Too!
- Halloween Board Games
Basic Slime Recipes
Our easy, “how to make” slime recipes show you how to master slime in 5 minutes or less! We have spent years tinkering with our favorite basic slime recipes to make sure you can make the BEST slime every time!
We believe slime shouldn’t be disappointing or frustrating! That’s why we want to take the guesswork out of making slime!
- Discover the best slime ingredients and get the right slime supplies the first time!
- Make easy slime recipes that really work!
- Achieve awesome slimy consistency the kids’ love!
Which Slime Recipe To Use?
We have several basic slime recipes that can all be used for this spooky Halloween slime recipe. You decide which one works best for you depending on what slime activator you want to use. This allows for some flexibility depending on where you live in the world! Not everyone has access to the same ingredients!
Each of the basic slime recipes below have the full step by step photos, directions, and even videos to help you along the way!
Here we use our Saline Solution Slime recipe. All you need to make this slime is clear glue, baking soda, water, and saline solution.
If you can’t get your hands on clear glue, try white PVA glue! Though your rainbow slime might be a bit more on the pastel side depending on how much food coloring you use.
The Science Of Slime
What’s the slime science all about? The borate ions in the slime activators (sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and forms this cool stretchy substance. This is called cross-linking!
The glue is a polymer and is made up of long, repeating, and identical strands or molecules. These molecules with flow past one another keeping the glue in a liquid state. Until…
You add the borate ions to the mixture, and it then starts to connect these long strands together. They begin to tangle and mix until the substance is less like the liquid you started with and thicker and rubberier like slime! Slime is a polymer.
Picture the difference between wet spaghetti and leftover spaghetti the next day. As the slime forms, the tangled molecule strands are much like the clump of spaghetti!
Is slime a liquid or solid?
We call it a Non-Newtonian fluid because it’s a little bit of both! Experiment with making the slime more or less viscous with varying amounts of foam beads. Can you change the density?
Did you know that slime aligns with the Next Generation Science Standards (NGSS)?
It does and that means you can use slime making activities to explore states of matter and its interactions. Find out more below…
Helpful Slime Making Resources To Get You Started
- Slime Activator List
- What Do You Need To Make Slime
- How To Fix Sticky Slime
- How To Get Slime Out Of Clothes
- The Science of Slime
- How To Make Slime Videos
What Can You Add To Halloween Slime?
What can you pack into your slime? Just check out the Halloween party aisle of your local dollar store. I found these plastic eyeballs which were perfect for this slime brew. You can even use them for a simple DIY Halloween catapult!
Also, look for these fun items:
- spiders and insects in clear slime
- vampire teeth in a blood-red slime
- google eyes in white slime
- any Halloween confetti in a clear based slime with food coloring
Halloween Slime Recipe
- 1/2 cup of PVA School Clear Glue
- 1/2 cup of water
- 1/2 tsp baking soda
- Neon Food Coloring and Glitter (you can make this slime any number of Halloween colors as seen in the video above)
- 1 tbsp of saline solution (must contain boric acid and sodium borate)
STEP 1. Start by adding the clear glue and water to a bowl and grab a mixing utensil. Mix it up.
STEP 2. Add food coloring and glitter as desired!
STEP 3. Add in your slime activator (baking soda and saline solution) to complete the chemical reaction you read about above in the science behind the slime section. If you scrolled past it, go back and read it with your kids!
STEP 4. We always recommend kneading your slime well after mixing. Kneading the slime really helps to improve it’s consistency.
The trick with saline solution slime is to squirt a few drops of solution onto your hands before picking up the slime.
You can knead the slime in the bowl before you pick it up as well. This slime is ultra stretchy but can be stickier. However, keep in mind that although adding more solution reduces the stickiness, it will create a stiffer slime.
How To Store Slime
Slime lasts quite a while! I get a lot of questions regarding how I store my slime. We use reusable containers in either plastic or glass. Make sure to keep your slime clean and it will last for several weeks.
If you want to send kids home with a bit of slime from a camp, party, or classroom project, I would suggest packages of reusable containers from the dollar store or grocery store, or even Amazon. For large groups, we have used condiment containers as seen in the pictures above!
Halloween party favors can be so much more than candy. Even better it means that all kids regardless of allergies can enjoy the fun and excitement of Halloween. If you are throwing a Halloween party or even for making slime in the classroom with the kids. They will have a blast and so will you!
More Halloween Slime Ideas
Check out the complete collection of Halloween slime recipes. Here are a few of our favorites…
150+ Pages of Halloween-Themed Materials!
This Halloween project pack is suitable for home, school, and group use for kids in grades Kindergarten through elementary but is scaleable for many ages and abilities.
- 25+ Halloween theme science and STEM activities with printable sheets, instructions, and useful information all using easy-to-source materials perfect for limited-time needs. Includes a Halloween engineering pack with fun, problem-based challenges for kids to solve!
- The skeleton activity pack includes building a skeleton challenge and a coding challenge! Try a skeleton bones bridge-building STEM challenge!
- Halloween theme brick printable activities for hands-on learning with math that is perfect for early finishers or home fun and reinforces basic math concepts.
- Bonus fun pack includes games and activities to round out your Halloween theme activities such as I Spy, bingo, matching, Would You Rather cards, scavenger hunt, word search, A-Z Halloween hunt, and a coloring page.
- Halloween STEAM Pack includes artist-inspired projects by Warhol, Lichtenstein, and more!
Everyone’s favorite slime with special themes is just right for your kiddos! Plus, your kids will get to apply extra hands-on learning through writing, science, and math activities.
- Easy to follow basic slime recipes for fluffy slime, borax slime, liquid starch slime, and saline solution slime.
- Fun Halloween-themed slime recipes for extra creative slime time!
- Combine slime and math with easy-to-use printable sheets.
- Find fun ways to experiment with slime science including science information and key vocabulary.
- Fun slimy theme activities perfect for centers, early finishers, or classroom party time!
- Perfect for parties and groups!