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Home » middle school » How to Make Magnetic Slime Recipe – STEM Activity for Kids

How to Make Magnetic Slime Recipe – STEM Activity for Kids

Crafts and Activities

This post may contain affiliate links, view my disclosure policy.

This homemade magnetic slime recipe is EASY to make but requires adult supervision. Below you’ll learn how to make magnetic slime plus find other easy magnetic activities for kids!magnetic slime recipe with magnet

Last year my son sold slime at a kid’s entrepreneur event and spent months perfecting his slime recipes. This easy to make homemade magnetic slime recipe is by FAR his favorite and a stronger magnetic slime than any slime we have found on the market to buy. He has made a lot of batches of slime trying out the best strength for magnetic slime and this recipe is the winner! (Looking for even more sensory ideas? Join our sensory Facebook group here!)

handful of magnetic slime sensory play

Magnetic Slime Recipe Ingredients:

1/2 cup of Elmer’s School Glue
1/2 cup Shaving Cream (NOT shaving gel, just cheap regular shaving cream)
1 Tbsp. Cornstarch
3 pumps any Hand or Body Lotion
1/2 tsp. Iron Filling (Buy a small bag here or a large bag here)
1.5 cups Liquid Starch

black magnetic slime recipe for sensory

Magnetic Slime Directions:

In a medium bowl:

1. Add 1/2 a cup of white school glue.
2. Add 1/2 cup of shaving cream.
3. Add one tablespoon of cornstarch.
4. Add 3 pumps of any Hand/Body Lotion.
5. Mix the four and add 1/2 a teaspoon of black iron oxide powder*.
6. Add half 1 1/2 a cup of liquid starch to a container mix and let it sit for 30 minutes.
7. Add the rest and mix well.
9. Play with the slime!

*TIP – I strongly recommend adult supervision when opening and using black iron oxide powder! It can be easy to accidentally inhale and you will want to hold the bag far away from your face as this is an iron filling. You do NOT want any powder dust near your face! Once it is mixed thoroughly into the slime it is OK to use!

homemade diy magnetic slime recipe

This magnetic slime recipe stores AWESOME in any airtight storage container. My son has kept his for up to 6 months or more with no issues. Although you might be tempted to add a ton more iron filling to see how fast your magnetic slime can move I’d add the word of caution that the black iron oxide powder can tend to leave black marks on your hand if you are using it in too high of a quantity! This recipe does NOT leave extra fillings or colors on your hands!

*NOTE – over time the iron oxide will separate in the slime mixture. All you need to do is stir it up or mix it well and your slime will be as good as new!

 

magnet on magnetic slime recipe

Any size magnet works but we bought a super strong square magnet for a bigger WOW effect! It’s unbelievable – it looks like a blob from a movie just crawling up and around the magnet! My son was incredibly excited because he had purchased magnetic slime before and it was so lousy compared to this homemade magnetic slime recipe he created!

magnetic slime with magnet experiment

TRY IT OUT!

Roll a bit of your magnetic slime up like you see above and hold your magnet ABOVE it. We were able to make our magnetic slime “WAVE” back and forth as we moved the magnet in an arch pattern above the slime! You can see this magnetic pattern shown in the video!


Buy Magnetic Slime ingredients here!

Other Magnetic Activities:

FREE Magnetic Camping Playset
Hanging Magnets
Magnetic Pom Poms
Glow in the Dark Magnetic Constellations
Magnetic Pioneer Dress Up Doll

Magnetic Educational Toys:


PIN IT HERE –>magnetic slime recipe photo tutorial

Other Learning STEM Activities:

solder kit and boy soldering 5 Simple Light Table Activities Coolest Science Animal Anatomy Model Kits for Kids

Magnetic Sand at a California Beach:

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Shared by Crystal @ Surviving a Teacher's Salary

Comments

  1. Beckie Rodgers says

    October 14, 2018 at 7:57 pm

    We want to make this for a science experiment for 60 kids, how much does this recipe make?

    Reply
    • Crystal @ Surviving a Teacher's Salary says

      October 14, 2018 at 8:02 pm

      Hi Beckie! This recipe makes roughly enough slime for about 4-6 ounces (It looks good in an 8 oz. container). So it would depend on the size of your cups. If you’re making the small condiment cups for 60 kids I’d start by multiplying this recipe out by 6 and then go from there so you don’t make to much. You’ll probably need an additional batch but it’s VERY quick and easy to whip up!

      Reply
  2. Carrie Steins says

    November 11, 2018 at 1:45 pm

    Hello! Can you use any liquid starch or
    Does it have to be Staflo?? Thank you for your help!!
    Best,
    Carrie

    Reply
    • Crystal @ Surviving a Teacher's Salary says

      November 12, 2018 at 8:44 am

      I haven’t tried any other liquid starch but I would think any other one would work!

      Reply

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My name is Crystal - I am the passion behind the site and I am so glad you've stopped by! Whether you're a teacher or parent you'll find educational crafts, reviews, deals, printables and other great resources! Read More..
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