Learn how to make black slime thats magnetic! This homemade slime craft uses Elmer’s glitter glue and glow in the dark glue to create glittery black slime.
Slime in general can be pretty messy. There have been times where I’ve found globs of sticky slime, beaded slime and scented slime all over my carpet and couch. Which is why I normally stay away from adding slime to our to-do list of crafts. But this week, we took another chance on slime and had a great time creating this boredom busting magnetic black slime!
This slime craft is very different than the usual homemade slime recipe. By adding iron to our concoction we were able to use magnets to lure the slime across the counter. I encourage you to let your little ones experiment with the strength of the slime and hold the magnet far away to watch the slime crawl over them. Or have them let go of the magnet and watch the goo small it up!
This magnetic slime craft was a big favorite of my boys!
How To Make Black Slime Thats Magnetic!
- Neodymium Bar Magnet
- Sta-flo Liquid Starch (any liquid starch will do.)
- Glow in the Dark Glue or Glitter Glue (we used both!)
- Iron Oxide powder – I was unable to find this item in stores and needed to order on Amazon.
- Extras. We wanted to make this slime fun and Spring themed so we added glitter to make the color pop. This is the perfect opportunity to get creative! Especially since the iron turns the slime black, extras make it cooler!
- A mixing bowl.
- 1/4 cup measuring cup
- 1 Tablespoon measuring spoon
- Plastic spoons to stir. Metal spoons not recommended due to ingredients!
- Pour 1/4 glue into the mixing bowl. Then add 2 Tablespoons of Iron Oxide while stirring with the plastic spoon. This will create a grey mixture.
- Add 1/8 cup of liquid starch. Continue to mix with spoon, slime will start to form to make it more difficult to stir.
- Knead the slime. The combination of all ingredients will make it thicker than regular slime.
- Add any extras to make the slime fun! We rolled the magnetic slime in glitter while kneading well.
- Have fun! Experiment with the magnet and how far the two can be apart until the slime gravitates towards it.
As I do with most of my crafts, I added a scientific aspect to this lesson as we learned about elasticity, viscosity and states of matter!
Important Tips on How to Make Black Slime Thats Magnetic!
- If your homemade slime is too sticky, knead in more starch but only use a little bit at a time. If it’s too stringy, knead in more glue. You’ll be able to feel the consistency to make it perfect.
- Iron Oxide is not good to breathe in. Whereas it’s safe to work with under adult supervision, adding it to the glue immediately removes the risk. We originally tried adding it at the end but it was way too messy and I wasn’t fan of it all over mine or the kids hands.
- Magnetic slime can be stored in Tupperware containers just like standard slime.