Tuesday, March 11, 2014

Magnetic Slime!

When I first saw posts on Magnetic Slime I could not wait to try it out!  Now that we are exploring magnets it seemed like the perfect time to finally make the slime.

I tried a few recipes and liked the one at Get Your Mess On! the most.  To make the magnetic slime mix up your slime solutions as described at the bottom of this post.  It just takes a few ingredients - borax, glue, water and iron oxide.

This was a great exercise in measuring and mixing.

When it was all mixed together there was still a little water on top and the slime had formed below.

We then put the slime out on the table and began to play with magnets.  We used the horseshoe magnet we had at home and had great fun watching the slime rise up to meet the magnet as you brought the magnet closer.  We then made a 'worm' out of the slime and watched it reach towards the magnet or pick the worm up with the magnet.

We then got out our strong Neodymium magnets.  These were great.  We made slime volcanos as Bug would call them.    

We also watched the slime encase our magnets.  It was surprisingly easy to get the magnet out again.  You just pull it out and no residue remained on our magnets.

We had a lot of fun with this activity.  The Neodymium magnets are definitely better for the experiment as they are so much stronger.  Just be careful when using them because they are so strong.  

One suggestion is that I would play with the slime on a smooth surface as it is easier to pick all the pieces up.  

Can't wait to hear how you enjoyed this activity.  You can also store your slime in a container until the next time you want to play with it.

Magnetic Slime!

  • warm water
  • 1/3 cup iron oxide powder (we used this one here)
  • 1/2 cup white glue
  • 1 teaspoon borax
  • 2 bowls for mixing
  • neodynium magnet

  1. In the first bowl mix 1 cup of warm water with 1 teaspoon borax until most of the borax has dissolved.
  2. In the second bowl mix the glue, iron oxide powder and 1/2 cup warm water.
  3. Pour the contents of the first bowl into the second bowl and swirl the bowl around.  Wait a few minutes and the slime will form.  
  4. Mix with your hands for a minute and then remove the slime from the bowl.
  5. Place on a surface and play with your magnet.
  6. Store in an airtight container when you have finished.


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