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How to Make Magnetic Slime

Learn how to make magnetic slime at home with a few ingredients found online. Adult supervision required, not for younger kids to do.


One of my favorite things about homeschooling is that it gives me a chance to get in more family time. You see, we already do a lot of things together as a family. We explore the backwoods of NH, we go swimming, we sit down to family meals every night except Fridays (we let the boys have that night “off” to sit and chat with friends online).

Anyways, we do a lot of things together. As the boys get older though, it seems I need to use “homeschooling” as an excuse to sneak in some activities that the boys may otherwise not wish to do, right away. I mean, they always have fun but I may use the this-is-for-school excuse to get them to partake in some family “FUN” activities.

Now, mind you, our youngest boy is into everything science. He has always loved seeing how things worked, whereas our older boy prefers doing things that have a purpose. And most of our FUN is truly educational in some way!

The older boy would be into growing a garden or making food, caring for animals, etc but he isn’t into making magnetic slime because it “has no purpose”. And so we enjoyed doing this activity with our youngest boy a while back.

I truly hope that you print this recipe or at least PIN the instructions for later because whether you homeschool or not, this is by far something interesting to do with your kids.

Also, don’t make this time with younger children. You will need to supervise as the ingredients are not something meant to be used by kids without adult interaction and supervision.

Wash hands thoroughly and do get yourself {and the kids} some gloves to use so you don’t get the black all over your hands during creation and playtime.

Parental Warnings Before Making This

The magnet is SUPER strong, so please don’t let your kids just play around with the magnets. They will smash into each other and can pinch your kids’ skin badly!

The ion powder should be handle by the adults, it is dusty (or can be) and while let our 12-year-old mix it up, younger kids may make a dusty mess. The powder shouldn’t be touched to the skin nor should the dust be breathed in.

Don’t underestimate the fun involved with buying Magnetic Putty that’s already made. You can easily conduct science experiments using premade magnetic slime if you’re not ready to take on this project yet.

Magnetic Slime Recipe Ingredients & Supplies

Liquid starch

Elmer’s School Glue

A large glass (we used a Pyrex bowl) bowl for mixing

Spoon for Stirring

Iron Oxide Powder

Gloves to Protect Hands

1/4 Cup Measuring Cup

1 Tablespoon Measuring Spoon

1 neodymium (rare earth) magnet

1/8 Cup Measuring Cup

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