Introduction: How to Make Magnetic Slime

  • WARNING: Extremely strong magnets are part of experiment. Keep all electronics away while doing this experiment.
  • Make sure to read all the instructions before beginning.
  • Please be sure to wear your plastic gloves during the whole experiment. It is not harmful to your skin, this is only to keep your hands clean.
  • Close supervision required if children are present. Magnets are harmful if swallowed!!
  • This fun project works best with an assistant to help you while your hands get dirty.

Step 1: Gather Supplies

  • Gloves (form fitting work best, you will need several. Unless you don't mind getting a little dirty.)
  • Liquid Starch
  • Elmer's Glue
  • Black Iron Oxide (the best website to buy it is here)
  • Disposable Bowls
  • Craft Sticks (for stirring)
  • 1/4 cup & 1 Tablespoon for measuring
  • Newspaper
  • Paper Towels
  • Small Storage Containers
  • Neodymium Magnets (Strong rare earth magnets, you can find them at your local home improvement store)

Step 2: Prep Work Station

Cover your workstation with newspaper to protect from spills.

Step 3: Stay Clean

Put your gloves on for protection. The black iron oxide is not toxic to your skin, but can be messy. Wear clothes you don't mind getting dirty.

Step 4: Pour Liquid Starch

Measure & pour 1/4 cup of liquid starch into a bowl.

Step 5: Add Black Iron Oxide

  • Measure and add 2 Tablespoons of Black Iron Oxide into the bowl and stir until well mixed.

Step 6: Pour Elmer's Glue

Measure and add 1/4 cup of Elmer's glue into the mixture and keep stirring until slime comes together.

  • It is normal to see liquid remaining in the bowl after slime comes together. Do not panic, just leave it in the bowl.

Step 7: Knead the Slime

Take the slime out of the bowl and knead in your hands. Squish until well mixed. (About 2-3 minutes)

Step 8: Remove Excess Moisture

  • Place slime down on 3 layered paper towels.
  • Change gloves and proceed to pick up slime with paper towels
  • Use paper towels to squeeze out moisture
  • When you feel you have squeezed enough moisture out, you can proceed to the next step.

Step 9: Play

Test your slime with the magnets. Be creative and have fun! ***REMEMBER TO BE EXTRA CAUTIOUS WHEN LETTING CHILDREN HANDLE MAGNETS.

Step 10: Store the Slime

Store the slime in an airtight container when you are done playing with it.