How to Make Flubber

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Flubber is an interesting substance that children will enjoy playing with for hours. Make this during science class or as a great creative play activity for after school. Encourage children to test various ideas and see how the Flubber reacts.


2 cups white glue

1 1/2 cup water

food coloring

1/3 cup hot water

1 teaspoon borax


In one bowl or container, mix the glue, 1 1/2 cup water and just a few drops of food coloring.

In a separate bowl mix the hot water and borax. After mixed, use hand to add mixture to the glue mixture.

Stir with your hand and pull out the blob.

Continue to mix in 1/3 cup water and borax until all the glue mixture is gone. It will take approximately 3-4 times.

Over the next 3o minutes or so the Flubber will lose any stickiness or excess wetness and become more rubbery. It will also swell as it sits, so be sure to place it in a container that provides room for growth.

Blowing Bubbles with Flubber

Over the first few hours after making Flubber it will have the ability to produce bubbles. Take a large glob of Flubber and blow into it with a straw to blow bubbles. The Flubber will last for a long while, but this bubble blowing capability will quickly diminish.

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