Craft Corner: Make Your Own Slime Putty

By Jennifer Chasse, New River Valley, VA Publisher April 2, 2014

Here's a simple project that combines science with creative play. With just three ingredients you can make your own silly putty/slime/gak. 

What You Need:

  • White school glue (a regular 5 oz bottle will make a good sized amount)
  • Borax, available in the cleaning section of grocery stores
  • Water
  • Food coloring (optional)
  • A large bowl, whisk, and plastic bag to store it in

What You Do:

  1. Empty the entire bottle of glue into a bowl.
  2. Fill the empty bottle with warm water, shake it up, and add it to the bowl so you have equal parts glue and water.
  3. Use a whisk to mix it together well.
  4. If you are using food coloring, add it now and mix.
  5. Slowly add about 3-4 tablespoons of Borax and watch as the molecules begin to adhere to the glue, creating a polymer. Use your hands to mix it up and add Borax as needed. More Borax will result in a thicker silly putty consistency, while less will result in a stringier, slimier texture. 
  6. Roll it, shape it, bounce it and enjoy it, and then store the putty in plastic bag and wash hands well.