How to Make Water Polymer Balls at Home

Borax helps glue polymers branch off and connect in a web-like structure.
••• Images

Cups, bottles, toys, shower curtain liners, food containers, CD boxes: look around and you will probably see lots of plastic in your environment. Plastic is a type of synthetic polymer, which is a substance made up of many repeating structures. Polymers also form natural substances, such as proteins, starches and cellulose. Manufactured polymers share many properties, including resistance to chemicals, insulating ability and strength. You can make your own bouncing polymers with ordinary household materials.

Bring on the Ball

    Cover your workspace with newspapers or paper towels.

    Combine the borax and water in a plastic cup, then stir with a Popsicle stick.

    Add a few drops of food coloring, if desired.

    Add the cornstarch to the borax solution, then stir.

    Add the borax-and-cornstarch solution to the cup containing the white glue. Stir until it is very thick.

    Pull the mixture out of the cup. Knead and roll it into a ball shape. Continue rolling until it is relatively dry.

    Add more cornstarch, half a teaspoon at a time, if the ball is too sticky.

    Coat the outside of the ball with white glue for extra protection, if desired. Set the ball on wax paper while the glue dries.

    Store in a sealed plastic bag.

    Things You'll Need

    • Newspapers or paper towels
    • 1 empty disposable plastic cup
    • 2 Popsicle sticks
    • ½ teaspoon powdered borax, a laundry additive
    • 3 teaspoons warm water
    • Food coloring (optional)
    • 2 teaspoons cornstarch
    • 4 teaspoons white glue in a plastic cup
    • Extra cornstarch (optional)
    • Extra white glue (optional)
    • Wax paper (optional)
    • 1 ziplock bag


    • You can make a larger ball by increasing the amount of ingredients. Always use the same proportions.

Related Articles

How to Shrink Rubber Bands
How to Make Flubber Without Borox or Liquid Starch
How to Make Rubber With Corn Starch, Water and Vinegar
How to Make Your Own Styrofoam Formula
How to Make Cytoplasm for a Cell Project
How to Mix Calcium Chloride and Water
How to Make Bouncy Putty
Characteristics of Aquatic Plants
How to Make Plastic
How to Make an Egg Drop Box
What Is a Carbohydrate Found in a Cell Wall of Plant...
How to Build a 3D Animal Cell Model
How to Make a Volcano
Test Your Knowledge on Middle School Science
What Is LDPE Plastic?
How to Drop an Egg Without Breaking It by Using Straws...
How to Make Potions for Kids
How to Make a Brick for a School Project
How to Make Crystals with Epsom Salt
What Is Polyethylene Glycol?